Qore SqlUtil Module Reference 1.9
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SqlUtil::AbstractDatabase Class Referenceabstract

the base abstract class for the database implementation More...

#include <AbstractDatabase.qc.dox.h>

Inheritance diagram for SqlUtil::AbstractDatabase:
[legend]

Public Member Methods

 computeStatistics (*hash< auto > options)
 Compute database statistics. More...
 
bool dropFunctionIfExists (string name, *hash< auto > opt)
 drops the given function if it exists; returns True if the function was dropped, False if not More...
 
bool dropProcedureIfExists (string name, *hash< auto > opt)
 drops the given procedure if it exists; returns True if the procedure was dropped, False if not More...
 
bool dropSequenceIfExists (string name, *hash< auto > opt)
 drops the given sequence if it exists; returns True if the sequence was dropped, False if not More...
 
bool dropTableIfExists (string name, *hash< auto > opt)
 drops the given table if it exists; returns True if the table was dropped, False if not More...
 
bool dropViewIfExists (string name, *hash< auto > opt)
 drops the given view if it exists; returns True if the view was dropped, False if not More...
 
list features ()
 See DB Features Constants.
 
Qore::ListIterator functionIterator ()
 returns an iterator listing the string function names in the database
 
list< auto > getAlignFunctionSql (AbstractFunction f, *hash< auto > opt)
 returns a list of SQL strings that can be used to update a function in the database to the function definition passed as an argument More...
 
list< auto > getAlignProcedureSql (AbstractFunction f, *hash< auto > opt)
 returns a list of SQL strings that can be used to update a stored procedure in the database to the stored procedure definition passed as an argument More...
 
list< auto > getAlignSql (hash schema_hash, *hash< auto > opt, *Tables table_cache)
 accepts a hash argument describing a database schema and returns a list of SQL strings that can be used to align the structure and configuration of the current schema with that of the argument; if the objects described are identical then an empty list is returned More...
 
int getCurrentSequenceValue (string name)
 returns the last value issued for the given sequence in the current session More...
 
*string getDropFunctionSqlIfExists (string name, *hash< auto > opt)
 returns the SQL require to drop the given function if it exists or NOTHING if the named function does not exist More...
 
*string getDropProcedureSqlIfExists (string name, *hash< auto > opt)
 returns the SQL require to drop the given procedure if it exists or NOTHING if the named procedure does not exist More...
 
list< auto > getDropSchemaSql (hash schema_hash, *hash< auto > opt)
 accepts a hash argument describing a database schema and returns a list of SQL strings that can be used to drop any existing objects described in the schema; if none of the described objects exist, then an empty list is returned More...
 
*string getDropSequenceSqlIfExists (string name, *hash< auto > opt)
 returns the SQL require to drop the given sequence if it exists or NOTHING if the named sequence does not exist More...
 
*list< auto > getDropTableSqlIfExists (string name, *hash< auto > opt)
 returns the SQL require to drop the given table if it exists or NOTHING if the named table does not exist More...
 
*AbstractFunction getFunction (string name)
 returns an AbstractFunction argument for the given function name or NOTHING if the function cannot be found More...
 
int getMaximumPrecision ()
 Returns the maximum precision for numeric or decimal columns. More...
 
int getNextSequenceValue (string name)
 returns the next value in the given sequence More...
 
int getPhysicalSize ()
 Get the current database physical size in bytes. More...
 
*AbstractFunction getProcedure (string name)
 returns an AbstractFunction argument for the given stored procedure name or NOTHING if the stored procedure cannot be found More...
 
*AbstractSequence getSequence (string name)
 returns an AbstractSequence argument for the given sequence name or NOTHING if the sequence cannot be found More...
 
string getSqlFromList (list l)
 returns an SQL string corresponding to the list of commands in the argument More...
 
*AbstractTable getTable (string name)
 returns an AbstractTable argument for the given table name or NOTHING if the table cannot be found More...
 
*AbstractView getView (string name)
 returns an AbstractView argument for the given view name or NOTHING if the view cannot be found More...
 
list< string > listFunctions ()
 returns a list of string function names in the database
 
list< string > listProcedures ()
 returns a list of string procedure names in the database
 
list< string > listSequences ()
 returns a list of string sequence names in the database
 
list< string > listTables ()
 returns a list of string table names in the database
 
list< string > listViews ()
 returns a list of string view names in the database
 
AbstractFunction makeFunction (string name, string src, *hash< auto > opts)
 creates a database-specific AbstractFunction object corresponding to the arguments More...
 
AbstractFunction makeProcedure (string name, string src, *hash< auto > opt)
 creates a database-specific AbstractFunction object for a stored procedure corresponding to the arguments More...
 
AbstractSequence makeSequence (string name, number start=1, number increment=1, *softnumber end, *hash< auto > opts)
 creates a database-specific AbstractSequence object corresponding to the arguments More...
 
AbstractTable makeTable (string name, hash< auto > desc, *hash< auto > opts)
 creates a database-specific AbstractTable object corresponding to the arguments More...
 
Qore::ListIterator procedureIterator ()
 returns an iterator listing the string procedure names in the database
 
bool rebuildIndex (AbstractIndex index, *hash< auto > options)
 Rebuild an index in the DB. More...
 
bool rebuildIndex (string name, *hash< auto > options)
 Rebuild an index in the DB. More...
 
 reclaimSpace (*hash< auto > options)
 Reclaim taken but unused space in the DB. More...
 
bool requiresScale ()
 Returns True if the driver requires a scale to support decimal values in numeric or decimal columns. More...
 
Qore::ListIterator sequenceIterator ()
 returns an iterator listing the string sequence names in the database
 
bool supportsPackages ()
 returns True if the database supports packages
 
bool supportsSequences ()
 returns True if the database supports sequences
 
bool supportsTypes ()
 returns True if the database supports named types
 
Qore::ListIterator tableIterator ()
 returns an iterator listing the string table names in the database
 
auto tryExec (string sql)
 executes some SQL with optional arguments so that if an error occurs the current transaction state is not lost More...
 
auto tryExecArgs (string sql, *softlist< auto > args)
 executes some SQL with optional arguments so that if an error occurs the current transaction state is not lost More...
 
auto tryExecRaw (string sql)
 executes some SQL so that if an error occurs the current transaction state is not lost More...
 
Qore::ListIterator viewIterator ()
 returns an iterator listing the string view names in the database
 
- Public Member Methods inherited from SqlUtil::AbstractSqlUtilBase
Qore::SQL::AbstractDatasource getDatasource ()
 gets the underlying AbstractDatasource
 
string getDatasourceDesc ()
 returns a descriptive string for the datasource
 
string getDriverName ()
 returns the database driver name
 

Public Attributes

const AC_Add = 6
 used when an element is added to an existing object
 
const AC_Create = 1
 used when a new object is created
 
const AC_Delete = 10
 used when data is deleted in a table
 
const AC_Drop = 2
 used when an object is dropped
 
const AC_Insert = 8
 used when data is inserted in a table
 
const AC_Modify = 4
 used when an object is modified in place
 
const AC_NotFound = 11
 used when dropping object but the object is not present
 
const AC_Recreate = 7
 used when an object is recreated (usually dropped and recreated in place)
 
const AC_Rename = 3
 used when an object is renamed
 
const AC_Truncate = 5
 used when a table is truncated
 
const AC_Unchanged = 0
 
const AC_Update = 9
 used when data is updated in a table
 
const ActionDescMap = ...
 maps from action descriptions to action codes
 
const ActionLetterMap = ...
 maps from action codes to action letter codes
 
const ActionMap = ...
 maps from action codes to action descriptions
 
const AlignSchemaOptions = ...
 default generic schema description / alignment options More...
 
const CacheOptions = ...
 generic cache options More...
 
const CallbackOptions = ...
 generic callback options More...
 
const ComputeStatisticsOptions = ...
 Options for computeStatistics()
 
const CreationOptions = ...
 default generic creation options More...
 
const DatabaseOptions = ...
 database options More...
 
const DropSchemaOptions = ...
 default generic drop schema options More...
 
const ReclaimSpaceOptions = ...
 Options for reclaimSpace()
 
const SchemaDescriptionOptions = ...
 default generic schema description keys More...
 
const SequenceDescriptionOptions = ...
 default generic sequence description keys More...
 

Private Member Methods

 constructor (AbstractDatasource nds, *hash nopts)
 creates the object; private constructor More...
 
hash< auto > getAlignSchemaOptions ()
 override in subclasses to return driver-specific options
 
hash< auto > getCacheOptions ()
 override in subclasses to return driver-specific options
 
hash< auto > getCallbackOptions ()
 override in subclasses to return driver-specific options
 
hash< auto > getComputeStatisticsOptions ()
 override in subclasses to return driver-specific options
 
hash< auto > getCreationOptions ()
 override in subclasses to return driver-specific options
 
abstract int getCurrentSequenceValueImpl (string name)
 returns the last value issued for the given sequence in the current session
 
hash< auto > getDatabaseOptions ()
 override in subclasses to return driver-specific options
 
hash< auto > getDropSchemaOptions ()
 override in subclasses to return driver-specific options
 
abstract int getNextSequenceValueImpl (string name)
 returns the next value in the given sequence
 
hash< auto > getRebuildIndexOptions ()
 override in subclasses to return driver-specific options
 
hash< auto > getReclaimSpaceOptions ()
 override in subclasses to return driver-specific options
 
hash< auto > getSchemaDescriptionOptions ()
 override in subclasses to return driver-specific options
 
hash< auto > getSequenceDescriptionOptions ()
 override in subclasses to return driver-specific options
 
abstract bool supportsSequencesImpl ()
 returns True if the database supports sequences
 
auto tryExecArgsImpl (string sql, *softlist< auto > args)
 tries to execute a command so that if an error occurs the current transaction status is not lost
 
auto tryExecRawImpl (string sql)
 tries to execute a command so that if an error occurs the current transaction status is not lost
 
- Private Member Methods inherited from SqlUtil::AbstractSqlUtilBase
 constructor (AbstractDatasource nds, *hash nopts)
 creates the object; private constructor More...
 
transient Mutex l ()
 mutex for atomic actions
 
 validateHashKeysForWhitespaces (auto node)
 Check input node for all hash keys - if it contains a key with whitespace in the beginning or at the end -> error.
 

Private Attributes

bool native_case = False
 native case option
 
- Private Attributes inherited from SqlUtil::AbstractSqlUtilBase
transient AbstractDatasource ds
 the connection to the database server
 
string dsdesc
 datasource description
 
*hash< auto > opts
 option hash
 

Detailed Description

the base abstract class for the database implementation

Member Function Documentation

◆ computeStatistics()

SqlUtil::AbstractDatabase::computeStatistics ( *hash< auto >  options)

Compute database statistics.

See Database Statistics

Parameters
optionsan optional database-specific option hash
Exceptions
COMPUTE-STATISTICS-ERRORin case of wrong options given
Since
SqlUtil 1.2

◆ constructor()

SqlUtil::AbstractDatabase::constructor ( AbstractDatasource  nds,
*hash  nopts 
)
private

creates the object; private constructor

Parameters
ndsthe AbstractDatasource for the connection to the database
noptsa hash of options for the function creation string; see AbstractDatabase::DatabaseOptions for common options; each driver can support additional driver-specific options
Exceptions
OPTION-ERRORinvalid or unsupported option passed

◆ dropFunctionIfExists()

bool SqlUtil::AbstractDatabase::dropFunctionIfExists ( string  name,
*hash< auto >  opt 
)

drops the given function if it exists; returns True if the function was dropped, False if not

Example:
db.dropFunctionIfExists(name);
Parameters
namethe name of the function
optoptional callback options; see AbstractDatabase::CallbackOptions for more info
Returns
True if the function was dropped, False if not
Exceptions
OPTION-ERRORinvalid or unknown callback option

◆ dropProcedureIfExists()

bool SqlUtil::AbstractDatabase::dropProcedureIfExists ( string  name,
*hash< auto >  opt 
)

drops the given procedure if it exists; returns True if the procedure was dropped, False if not

Example:
db.dropProcedureIfExists(name);
Parameters
namethe name of the procedure
optoptional callback options; see AbstractDatabase::CallbackOptions for more info
Returns
True if the procedure was dropped, False if not
Exceptions
OPTION-ERRORinvalid or unknown callback option

◆ dropSequenceIfExists()

bool SqlUtil::AbstractDatabase::dropSequenceIfExists ( string  name,
*hash< auto >  opt 
)

drops the given sequence if it exists; returns True if the sequence was dropped, False if not

Example:
db.dropSequenceIfExists(name);
Parameters
namethe name of the sequence
optoptional callback options; see AbstractDatabase::CallbackOptions for more info
Returns
True if the sequence was dropped, False if not
Exceptions
OPTION-ERRORinvalid or unknown callback option

◆ dropTableIfExists()

bool SqlUtil::AbstractDatabase::dropTableIfExists ( string  name,
*hash< auto >  opt 
)

drops the given table if it exists; returns True if the table was dropped, False if not

Example:
db.dropTableIfExists(name);
Parameters
namethe name of the table
optoptional callback options; see AbstractDatabase::CallbackOptions for more info
Returns
True if the table was dropped, False if not
Exceptions
OPTION-ERRORinvalid or unknown callback option

◆ dropViewIfExists()

bool SqlUtil::AbstractDatabase::dropViewIfExists ( string  name,
*hash< auto >  opt 
)

drops the given view if it exists; returns True if the view was dropped, False if not

Example:
db.dropViewIfExists(name);
Parameters
namethe name of the view
optoptional callback options; see AbstractDatabase::CallbackOptions for more info
Returns
True if the view was dropped, False if not
Exceptions
OPTION-ERRORinvalid or unknown callback option

◆ getAlignFunctionSql()

list< auto > SqlUtil::AbstractDatabase::getAlignFunctionSql ( AbstractFunction  f,
*hash< auto >  opt 
)

returns a list of SQL strings that can be used to update a function in the database to the function definition passed as an argument

Example:
list l = db.getAlignFunctionSql(f);
Parameters
fthe template or target version of the function to compare to the database version
optan optional hash of options for the generation of the SQL strings; see AbstractDatabase::CreationOptions for common options; each driver can support additional driver-specific options
Returns
a list of SQL strings that can be used to update a function in the database to the function definition passed as an argument
Exceptions
OPTION-ERRORinvalid or unsupported option passed

◆ getAlignProcedureSql()

list< auto > SqlUtil::AbstractDatabase::getAlignProcedureSql ( AbstractFunction  f,
*hash< auto >  opt 
)

returns a list of SQL strings that can be used to update a stored procedure in the database to the stored procedure definition passed as an argument

Example:
list l = db.getAlignProcedureSql(f);
Parameters
fthe template or target version of the stored procedure to compare to the database version
optan optional hash of options for the generation of the SQL strings; see AbstractDatabase::CreationOptions for common options; each driver can support additional driver-specific options
Returns
a list of SQL strings that can be used to update a stored procedure in the database to the stored procedure definition passed as an argument
Exceptions
OPTION-ERRORinvalid or unsupported option passed

◆ getAlignSql()

list< auto > SqlUtil::AbstractDatabase::getAlignSql ( hash  schema_hash,
*hash< auto >  opt,
*Tables  table_cache 
)

accepts a hash argument describing a database schema and returns a list of SQL strings that can be used to align the structure and configuration of the current schema with that of the argument; if the objects described are identical then an empty list is returned

Example:
list l = db.getAlignSql(schema_hash);
Parameters
schema_hashthe schema description hash that decribes the target state of the schema
opta hash of options for the SQL creation strings; see AbstractDatabase::AlignSchemaOptions for common options; each driver can support additional driver-specific options
table_cachean optional object of class Tables to return the cache of AbstractTable objects keyed by table name for the schema template (ie target table definitions)
Returns
a list of SQL strings that can be used to align the structure and configuration of the current schema with that of the argument; if the objects described are identical then an empty list is returned
Exceptions
SCHEMA-DESCRIPTION-ERRORthe schema description hash has an error or a required object does not exist
OPTION-ERRORinvalid or unsupported option passed

◆ getCurrentSequenceValue()

int SqlUtil::AbstractDatabase::getCurrentSequenceValue ( string  name)

returns the last value issued for the given sequence in the current session

Example:
number n = db.getCurrentSequenceValue("seq_customers");
Parameters
namethe name of the sequence
Returns
the last value issued for the given sequence in the current session

◆ getDropFunctionSqlIfExists()

*string SqlUtil::AbstractDatabase::getDropFunctionSqlIfExists ( string  name,
*hash< auto >  opt 
)

returns the SQL require to drop the given function if it exists or NOTHING if the named function does not exist

Example:
string sql = db.getDropFunctionSqlIfExists(name);
Parameters
namethe name of the function
optoptional callback options; see AbstractDatabase::CallbackOptions for more info
Returns
the SQL require to drop the given function if it exists or NOTHING if the named function does not exist
Exceptions
OPTION-ERRORinvalid or unknown callback option

◆ getDropProcedureSqlIfExists()

*string SqlUtil::AbstractDatabase::getDropProcedureSqlIfExists ( string  name,
*hash< auto >  opt 
)

returns the SQL require to drop the given procedure if it exists or NOTHING if the named procedure does not exist

Example:
string sql = db.getDropProcedureSqlIfExists(name);
Parameters
namethe name of the procedure
optoptional callback options; see AbstractDatabase::CallbackOptions for more info
Returns
the SQL require to drop the given procedure if it exists or NOTHING if the named procedure does not exist
Exceptions
OPTION-ERRORinvalid or unknown callback option

◆ getDropSchemaSql()

list< auto > SqlUtil::AbstractDatabase::getDropSchemaSql ( hash  schema_hash,
*hash< auto >  opt 
)

accepts a hash argument describing a database schema and returns a list of SQL strings that can be used to drop any existing objects described in the schema; if none of the described objects exist, then an empty list is returned

Example:
list l = db.getDropSchemaSql(schema_hash);
Parameters
schema_hashthe schema description hash that decribes the state of the schema
opta hash of options for the SQL creation strings; see AbstractDatabase::DropSchemaOptions for common options; each driver can support additional driver-specific options
Returns
a list of SQL strings that can be used to drop any existing objects in the database; if none of the described objects exist, then an empty list is returned
Exceptions
SCHEMA-DESCRIPTION-ERRORthe schema description hash has an error
OPTION-ERRORinvalid or unsupported option passed

◆ getDropSequenceSqlIfExists()

*string SqlUtil::AbstractDatabase::getDropSequenceSqlIfExists ( string  name,
*hash< auto >  opt 
)

returns the SQL require to drop the given sequence if it exists or NOTHING if the named sequence does not exist

Example:
string sql = db.getDropSequenceSqlIfExists(name);
Parameters
namethe name of the sequence
optoptional callback options; see AbstractDatabase::CallbackOptions for more info
Returns
the SQL require to drop the given sequence if it exists or NOTHING if the named sequence does not exist
Exceptions
OPTION-ERRORinvalid or unknown callback option

◆ getDropTableSqlIfExists()

*list< auto > SqlUtil::AbstractDatabase::getDropTableSqlIfExists ( string  name,
*hash< auto >  opt 
)

returns the SQL require to drop the given table if it exists or NOTHING if the named table does not exist

Example:
string sql = db.getDropTableSqlIfExists(name);
Parameters
namethe name of the table
optoptional callback options; see AbstractDatabase::CallbackOptions for more info
Returns
the SQL require to drop the given table if it exists or NOTHING if the named table does not exist
Exceptions
OPTION-ERRORinvalid or unknown callback option

◆ getFunction()

*AbstractFunction SqlUtil::AbstractDatabase::getFunction ( string  name)

returns an AbstractFunction argument for the given function name or NOTHING if the function cannot be found

Example:
*AbstractFunction f = db.getFunction("update_queue");
Parameters
namethe uniquely-identifying name of the function to retrieve
Returns
an AbstractFunction argument for the given function name or NOTHING if the function cannot be found
Note
for databases that support overloaded functions, the arguments must be passed in parentheses after the name to match overloaded functions properly

◆ getMaximumPrecision()

int SqlUtil::AbstractDatabase::getMaximumPrecision ( )

Returns the maximum precision for numeric or decimal columns.

Returns
-1 means, no maximum
Since
SqlUtil 1.7.5

◆ getNextSequenceValue()

int SqlUtil::AbstractDatabase::getNextSequenceValue ( string  name)

returns the next value in the given sequence

Example:
number n = db.getNextSequenceValue("seq_customers");
Parameters
namethe name of the sequence
Returns
the next value in the given sequence

◆ getPhysicalSize()

int SqlUtil::AbstractDatabase::getPhysicalSize ( )

Get the current database physical size in bytes.

Returns
int with size or -1 in case there is no implementation available.
Note
value returned from this method is subject of particular DBMS implementation. Value can be calculated eg. by a block size, extents usage etc. Please refer your DBMS documentation.
Since
SqlUtil 1.5.2

◆ getProcedure()

*AbstractFunction SqlUtil::AbstractDatabase::getProcedure ( string  name)

returns an AbstractFunction argument for the given stored procedure name or NOTHING if the stored procedure cannot be found

Example:
*AbstractFunction f = db.getProcedure("update_queue");
Parameters
namethe uniquely-identifying name of the stored procedure to retrieve
Returns
an AbstractFunction argument for the given stored procedure name or NOTHING if the stored procedure cannot be found
Note
for databases that support overloaded stored procedures, the arguments must be passed in parentheses after the name to match overloaded stored procedures properly

◆ getSequence()

*AbstractSequence SqlUtil::AbstractDatabase::getSequence ( string  name)

returns an AbstractSequence argument for the given sequence name or NOTHING if the sequence cannot be found

Example:
*AbstractSequence seq = db.getSequence("seq_queues");
Parameters
namethe uniquely-identifying name of the sequence to retrieve
Returns
an AbstractSequence argument for the given sequence name or NOTHING if the sequence cannot be found

◆ getSqlFromList()

string SqlUtil::AbstractDatabase::getSqlFromList ( list  l)

returns an SQL string corresponding to the list of commands in the argument

Example:
string sql = t.getSqlFromList(list);
Parameters
la list of SQL commands
Returns
an SQL string corresponding to the list of commands in the argument

◆ getTable()

*AbstractTable SqlUtil::AbstractDatabase::getTable ( string  name)

returns an AbstractTable argument for the given table name or NOTHING if the table cannot be found

Example:
*AbstractTable table = db.getTable("queues");
Parameters
namethe uniquely-identifying name of the table to retrieve
Returns
an AbstractTable argument for the given table name or NOTHING if the table cannot be found

◆ getView()

*AbstractView SqlUtil::AbstractDatabase::getView ( string  name)

returns an AbstractView argument for the given view name or NOTHING if the view cannot be found

Example:
*AbstractFunction f = db.getView("my_view");
Parameters
namethe uniquely-identifying name of the view to retrieve
Returns
an AbstractView argument for the given view name or NOTHING if the sview cannot be found

◆ makeFunction()

AbstractFunction SqlUtil::AbstractDatabase::makeFunction ( string  name,
string  src,
*hash< auto >  opts 
)

creates a database-specific AbstractFunction object corresponding to the arguments

Example:
AbstractFunction f = db.makeFunction("update_queue", src);
Parameters
namethe name of the function
srcthe database-specific source code of the function (see the database-specific documentation for information about the format of this parameter; generally it's simply the normal source code for the function required by the database)
optsan optional hash of options for the creation of the function; see AbstractDatabase::CreationOptions for common options; each driver can support additional driver-specific options
Exceptions
OPTION-ERRORinvalid or unsupported option passed

◆ makeProcedure()

AbstractFunction SqlUtil::AbstractDatabase::makeProcedure ( string  name,
string  src,
*hash< auto >  opt 
)

creates a database-specific AbstractFunction object for a stored procedure corresponding to the arguments

Example:
AbstractFunction f = db.makeProcedure("get_queue_info", src);
Parameters
namethe name of the stored procedure
srcthe database-specific source code of the stored procedure (see the database-specific documentation for information about the format of this parameter; generally it's simply the normal source code for the stored procedure required by the database)
optan optional hash of options for the creation of the stored procedure; see AbstractDatabase::CreationOptions for common options; each driver can support additional driver-specific options
Exceptions
OPTION-ERRORinvalid or unsupported option passed

◆ makeSequence()

AbstractSequence SqlUtil::AbstractDatabase::makeSequence ( string  name,
number  start = 1,
number  increment = 1,
*softnumber  end,
*hash< auto >  opts 
)
inline

creates a database-specific AbstractSequence object corresponding to the arguments

Example:
AbstractSequence seq = db.makeSequence("seq_queues");
Parameters
namethe name of the sequence
startthe starting value of the sequence
incrementthe increment value of the sequence
endthe endinf value of the sequence, omit for no ending value
optsan optional hash of options for the creation of the sequence; see AbstractDatabase::CreationOptions for common options; each driver can support additional driver-specific options
Exceptions
OPTION-ERRORinvalid or unsupported option passed
SEQUENCE-ERRORend not compatible with start and increment, increment is zero

◆ makeTable()

AbstractTable SqlUtil::AbstractDatabase::makeTable ( string  name,
hash< auto >  desc,
*hash< auto >  opts 
)

creates a database-specific AbstractTable object corresponding to the arguments

Example:
AbstractTable table = db.makeTable("table", th);
Parameters
namethe name of the table
desca table description hash describing the table
optsan optional hash of options for the table creation string; see SqlUtil::AbstractTable::TableOptions for common options; each driver can support additional driver-specific options
Exceptions
OPTION-ERRORinvalid or unsupported option passed
See also
SqlUtil::AbstractTable::constructor()

◆ rebuildIndex() [1/2]

bool SqlUtil::AbstractDatabase::rebuildIndex ( AbstractIndex  index,
*hash< auto >  options 
)

Rebuild an index in the DB.

See Index Management

Parameters
indexan AbstractIndex object
optionsan optional database-specific option hash
Exceptions
REBUILD-INDEX-ERRORin case of MySQL or in case of wrong options given
Since
SqlUtil 1.2

◆ rebuildIndex() [2/2]

bool SqlUtil::AbstractDatabase::rebuildIndex ( string  name,
*hash< auto >  options 
)

Rebuild an index in the DB.

See Index Management

Parameters
namean index name
optionsan optional database-specific option hash
Returns
bool True if the index was rebuild, False it it was left untouched
Exceptions
REBUILD-INDEX-ERRORin case of MySQL or in case of wrong options given
Since
SqlUtil 1.2

◆ reclaimSpace()

SqlUtil::AbstractDatabase::reclaimSpace ( *hash< auto >  options)

Reclaim taken but unused space in the DB.

See Space Management

Parameters
optionsan optional database-specific option hash
Exceptions
RECLAIM-SPACE-ERRORin case of wrong options given
Since
SqlUtil 1.2

◆ requiresScale()

bool SqlUtil::AbstractDatabase::requiresScale ( )

Returns True if the driver requires a scale to support decimal values in numeric or decimal columns.

Returns
True if the driver requires a scale to support decimal values in numeric or decimal columns
Since
SqlUtil 1.7.5

◆ tryExec()

auto SqlUtil::AbstractDatabase::tryExec ( string  sql)

executes some SQL with optional arguments so that if an error occurs the current transaction state is not lost

Example:
t.tryExec("drop table tmp_table");

Include any arguments in the parameter list after the sql argument

Parameters
sqlthe SQL to execute
Returns
any return value from the SQL command executed

◆ tryExecArgs()

auto SqlUtil::AbstractDatabase::tryExecArgs ( string  sql,
*softlist< auto >  args 
)

executes some SQL with optional arguments so that if an error occurs the current transaction state is not lost

Example:
t.tryExec("delete from tmp_table where id = %v and name = %v", arglist);
Parameters
sqlthe SQL to execute
argsthe bind / placeholder or other arguments corresponding to the SQL string
Returns
any return value from the SQL command executed

◆ tryExecRaw()

auto SqlUtil::AbstractDatabase::tryExecRaw ( string  sql)

executes some SQL so that if an error occurs the current transaction state is not lost

Example:
t.tryExecRaw("drop table tmp_table");

Include any arguments in the parameter list after the sql argument

Parameters
sqlthe SQL to execute
Returns
any return value from the SQL command executed

Member Data Documentation

◆ AlignSchemaOptions

const SqlUtil::AbstractDatabase::AlignSchemaOptions = ...

default generic schema description / alignment options

Currently this option is identical to AbstractDatabase::CreationOptions plus the following keys:

  • force: (bool) is True and supported by the underlying db driver, FORCE or CASCADE options are used when dropping or aligning objects

◆ CacheOptions

const SqlUtil::AbstractDatabase::CacheOptions = ...

generic cache options

The following keys can be set for this option:

  • table_cache: (Tables) an optional table cache for maintaining cached tables and foreign key relationships between tables

◆ CallbackOptions

const SqlUtil::AbstractDatabase::CallbackOptions = ...

generic callback options

The following keys can be set for this option:

◆ CreationOptions

const SqlUtil::AbstractDatabase::CreationOptions = ...

default generic creation options

This option is comprised of AbstractDatabase::CallbackOptions plus the following keys:

  • replace: (bool) if True and supported by the underlying db driver, "create or replace" text is used when creating objects
  • table_cache: (Tables) an optional table cache for maintaining cached tables and foreign key relationships between tables
  • data_tablespace: (string) a string giving the data tablespace to use for tables
  • index_tablespace: (string) a string giving the index tablespace to use for indexes

◆ DatabaseOptions

const SqlUtil::AbstractDatabase::DatabaseOptions = ...

database options

The following keys can be set for this option:

  • native_case: (bool) if True then objects will be returned in the case the database server returns them in even if the database server uses case-insensitive names; normally in this case SqlUtil will convert the names to lower-case

◆ DropSchemaOptions

const SqlUtil::AbstractDatabase::DropSchemaOptions = ...

default generic drop schema options

Currently this option is identical to AbstractDatabase::CallbackOptions plus the following keys:

  • force: (bool) is True and supported by the underlying db driver, FORCE or CASCADE options are used when dropping objects

◆ SchemaDescriptionOptions

const SqlUtil::AbstractDatabase::SchemaDescriptionOptions = ...

default generic schema description keys

The following keys can be set in schema description hashes:

  • tables: a hash keyed by table name set to table description hash values
  • table_map: a hash for automatically renaming tables; if the source name (key) exists and the target name (value) does not exist, then the source table is automatically renamed
  • sequences: a hash keyed by sequence name set to sequence hash<auto> description values
  • sequence_map: a hash for automatically renaming sequences; if the source name (key) exists and the target name (value) does not exist, then the source sequence is automatically renamed
  • functions: a hash keyed by function name set to function source string values
  • function_map: a hash for automatically renaming functions; if the source name (key) exists and the target name (value) does not exist, then the source function is automatically renamed
  • procedures: a hash keyed by procedure name set to procedure source string values
  • procedure_map: a hash for automatically renaming procedures; if the source name (key) exists and the target name (value) does not exist, then the source procedure is automatically renamed
See also
Schema Description Hash for more information

◆ SequenceDescriptionOptions

const SqlUtil::AbstractDatabase::SequenceDescriptionOptions = ...

default generic sequence description keys

The following keys can be set in sequence description hashes:

  • start: (int) the starting value for the sequence
  • increment: (int) the increment value for the sequence
  • end: (int) the ending value for the sequence