LLBLGen Pro v5.10 Runtime Framework Reference Manual
Namespaces
SD.LLBLGen.Pro Namespaces
SD.LLBLGen.Pro.ORMSupportClasses Namespaces
SD.LLBLGen.Pro.ORMSupportClasses
DynamicQueryEngineBase Class
DynamicQueryEngineBase Methods
AddSingleTargetElementToFromClause Method
AppendFieldExpressionAsValueForInsert Method
AppendFieldToValueFragmentsForInsert Method
AppendFromClause Method
AppendGroupByClause Method
AppendOrderByClause Method
AppendPostUpdateQueryInBatchFragments Method
AppendQueryHints Method
AppendResultsetFieldsToQuery Method
AppendUnionedQueries Method
AppendUpdateSetClauses Method
AppendWhereClause Method
CheckIfFieldNeedsInsertAction Method
CheckSelectListAndPersistenceInfoForSelect Method
ConstructFieldsToUpdateList Method
CreateActionQueryFromSQL Method
CreateCommand Method
CreateDbSpecificCreator Method
CreateDeleteDQ Method
CreateInsertDQ Method
CreatePagingSelectDQ Method
CreateRealQueryAndParameters Method
CreateRetrievalQueryFromSQL Method
CreateRowCountDQ Method
CreateSelectDQ Method
CreateSelectDQImpl Method
CreateSingleTargetDeleteDQ Method
CreateSingleTargetDeleteDQUsingCorrelatedSubQuery Method
CreateSingleTargetDeleteDQUsingKeywordClause Method
CreateSingleTargetInsertDQ Method
CreateSingleTargetUpdateDQ Method
CreateSingleTargetUpdateDQUsingCorrelatedSubQuery Method
CreateSingleTargetUpdateDQUsingFromClause Method
CreateStoredProcedureCommand Method
CreateSubqueryConnectionClausesDelete Method
CreateSubqueryConnectionClausesUpdate Method
CreateTvfCallQuery Method
CreateTvfFunctionNameFragmentList Method
CreateUpdateDQ Method
DetermineIfDuplicatesWillOccur Method
DetermineIfFieldAliasIsRequired Method
DetermineObjectAliasToUseForSelectListField Method
DeterminePrePostActionFragmentsForSequencedField Method
DetermineSequenceValueRetrievalExpressionForSequencedField Method
DetermineTargetAlias Method
GetCorrectFieldTypeBasedOnTypeSpecs Method
GetNewCatalogName Method
GetNewPerCallSequenceName Method
GetNewPerCallStoredProcedureName Method
GetNewSchemaName Method
GetNewSequenceName Method
GetNewStoredProcedureName Method
GetNullInProjectionFragment Method
GetTvfFunctionNameToUse Method
HandleDistinctEmit Method
MakeParametersAnonymous Method
PrepareQueryForBatchUpdates Method
ReAssembleFragments Method
ReAssembleStoredProcedureNameFragments Method
ResetCreator Method
UpdateAliasInUpdateTablePredicates Method
WrapCommandInPagingQuery Method
WrapQueryInBeginEndIfNecessary Method
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DynamicQueryEngineBaseGetNullInProjectionFragment Method

Gets the fragment to use in a projection for a literal NULL. By default this is 'NULL', but some databases need extra processing around NULL. Do to so, override this method.

Namespace:  SD.LLBLGen.Pro.ORMSupportClasses
Assembly:  SD.LLBLGen.Pro.ORMSupportClasses (in SD.LLBLGen.Pro.ORMSupportClasses.dll) Version: 5.10.0.0 (5.10.0)
Syntax
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protected virtual string GetNullInProjectionFragment()

Return Value

Type: String
See Also