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Qore FreetdsSqlUtil Module Reference 1.5
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Qore FreetdsSqlUtil Module Reference 1.5
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provides the FreeTDS-specific implementation of the SqlUtil::AbstractTable interface More...
#include <FreetdsSqlUtil.qm.dox.h>
Public Member Methods | |
| private | doSelectOrderByWithOffsetSqlUnlockedImpl (reference< hash< QueryInfo > > info, reference< string > sql, list< auto > coll) |
| processes a string for use in SQL select statements when there is an "order by" and "offset" argument | |
| string | getColumnSqlName (string col) |
| returns the column name for use in SQL strings; subclasses can return a special string in case the column name is a reserved word | |
| list | getColumnSqlNames (softlist cols) |
| returns a list of column names for use in SQL strings; subclasses can process the argument list in case a column name is a reserved word | |
| hash< auto > | getExpressionMap () |
| Returns the expression map for FreeTDS. | |
| string | getSchemaName () |
| returns the schema name | |
| string | getSqlName () |
| returns the name of the table to be used in SQL (with a possible qualifiers for schema, etc) | |
| *string | getTablespaceName () |
| returns the data filegroup name for the table or NOTHING if none is known | |
| code | getUpsertClosure (hash< auto > row, int upsert_strategy=UpsertAuto, *hash opt) |
| returns a closure for performing upserts More... | |
| hash< auto > | getWhereOperatorMap () |
| returns the "where" operator map for FreeTDS | |
| bool | hasArrayBind () |
| returns False because the freetds driver does not support array binds / bulk DML operations | |
Public Attributes | |
| const | FreetdsCopMap = ... |
| column operator specializations for FreeTDS | |
| const | FreetdsExpressionMap |
| FreeTDS Expression map. | |
| const | FreetdsIopMap = ... |
| a hash of default value operator descriptions for FreeTDS | |
| const | FreetdsOpMap |
| where operator specializations for FreeTDS | |
| const | FreetdsSelectOptions = ... |
| select options supported by FreetdsSqlUtil | |
| const | FreetdsTableDescriptionHashOptions = AbstractTable::TableDescriptionHashOptions |
| equal to SqlUtil::AbstractTable::TableDescriptionHashOptions | |
| const | FreetdsTruncDate = ... |
| Map SqlUtil::cop_trunc_date() constants to FreeTDS internal masks. | |
| const | FreetdsTypeMap = ... |
| maps postgresql type names to type configurations | |
| const | FreetdsUopMap = ... |
| a hash of default update operator definitions for FreeTDS | |
| bool | is_sybase |
| sybase flag | |
| const | MsQoreTypeMap |
| maps qore type names to MS SQL Server type names | |
| const | MsSqlServerTableHints = ... |
| query hints | |
| const | QoreTypeMap = ... |
| maps qore type names to DB type names | |
| bool | ss_has_merge = False |
| "has merge" flag for SQL server | |
| bool | ss_has_sequences = False |
| "has sequences" flag for SQL server | |
| const | SybaseQoreTypeMap |
| maps qore type names to Sybase/SAP type names | |
Private Member Methods | |
| clearImpl () | |
| clears FreeTDS-specific table information | |
| bool | constraintsLinkedToIndexesImpl () |
| returns True if the database links constraints to indexes (ie dropping the constraint drops the index, etc) | |
| copyImpl (AbstractTable old) | |
| db-specific copy actions | |
| doSelectLimitOnlyUnlockedImpl (reference< hash< QueryInfo > > info, reference< string > sql) | |
| processes a string for use in SQL select statements with "limit" but no "orderby" or "offset" | |
| hash | getColumnOperatorMapImpl () |
| returns the column operator map for this object | |
| string | getCreateSqlImpl (list l) |
| returns a string that can be used to create the table in the database | |
| string | getCreateTableSqlImpl (*hash opt) |
| returns a string that can be used to create the table in the database | |
| hash | getInsertOperatorMap () |
| returns the insert operator map for this object | |
| AbstractDataProviderType | getNumericTypeImpl (string native_type, bool nullable, *hash< auto > options) |
| returns the type for number / numeric columns for the database so that data conversions can be handled properly | |
| hash | getRawUpdateOperatorMap () |
| returns the raw (default) update operator map for this object | |
| AbstractSavepointHelper | getSavepointHelperImpl (*string savepoint) |
| get DB-specific savepoint helper More... | |
| hash | getSelectOptions () |
| returns the select options for this driver | |
| *string | getSqlValueImpl (auto v) |
| returns a string for use in SQL queries representing the DB-specific value of the argument More... | |
| bool | isDuplicateRowErrorImpl (hash< ExceptionInfo > ex) |
| Returns True if the exception was raised because of a duplicate row / key error. More... | |
| bool | supportsTablespacesImpl () |
| returns True if the database support tablespaces | |
| 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, *softlist< auto > args) |
| tries to execute a command so that if an error occurs the current transaction status is not lost | |
| bool | uniqueIndexCreatesConstraintImpl () |
| returns True if the database automatically creates a unique constraint with a unique index | |
provides the FreeTDS-specific implementation of the SqlUtil::AbstractTable interface
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privatevirtual |
get DB-specific savepoint helper
| savepoint | the savepoint string, if not given a unique savepoint string will be generated |
Implements SqlUtil::AbstractTable.
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privatevirtual |
returns a string for use in SQL queries representing the DB-specific value of the argument
returns NOTHING if the type cannot be converted to an SQL string
Implements SqlUtil::AbstractTable.
| code FreetdsSqlUtil::FreetdsTable::getUpsertClosure | ( | hash< auto > | row, |
| int | upsert_strategy = UpsertAuto, |
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| *hash | opt | ||
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returns a closure for performing upserts
if the underlying dataserver supports an optimized MERGE statement (Microsoft SQL Server 2008+), the upsert_strategy argument is ignored and a closure using a merge statement is returned, otherwise the standard upsert closure is returned according to SqlUtil::AbstractTable::getUpsertClosure()
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privatevirtual |
Returns True if the exception was raised because of a duplicate row / key error.
Implements SqlUtil::AbstractTable.