Class MySqlSqlBuilder
- Namespace
- LinqToDB.Internal.DataProvider.MySql
- Assembly
- linq2db.dll
public abstract class MySqlSqlBuilder : BasicSqlBuilder<MySqlOptions>, ISqlBuilder
- Inheritance
-
objectMySqlSqlBuilder
- Implements
- Derived
- Inherited Members
- Extension Methods
Constructors
MySqlSqlBuilder(IDataProvider?, MappingSchema, DataOptions, ISqlOptimizer, SqlProviderFlags)
protected MySqlSqlBuilder(IDataProvider? provider, MappingSchema mappingSchema, DataOptions dataOptions, ISqlOptimizer sqlOptimizer, SqlProviderFlags sqlProviderFlags)
Parameters
providerIDataProvidermappingSchemaMappingSchemadataOptionsDataOptionssqlOptimizerISqlOptimizersqlProviderFlagsSqlProviderFlags
MySqlSqlBuilder(BasicSqlBuilder)
protected MySqlSqlBuilder(BasicSqlBuilder parentBuilder)
Parameters
parentBuilderBasicSqlBuilder
Properties
ConcatStyle
SQL-emit shape for SqlConcatExpression. Defaults to Plus; override per provider.
protected override BasicSqlBuilder.ConcatBuildStyle ConcatStyle { get; }
Property Value
HintBuilder
protected StringBuilder? HintBuilder { get; set; }
Property Value
IsNestedJoinParenthesisRequired
public override bool IsNestedJoinParenthesisRequired { get; }
Property Value
IsRecursiveCteKeywordRequired
protected override bool IsRecursiveCteKeywordRequired { get; }
Property Value
IsValuesSyntaxSupported
If true, provider supports list of VALUES as a source element of merge command.
protected override bool IsValuesSyntaxSupported { get; }
Property Value
SupportsColumnAliasesInSource
If true, provider supports column aliases specification after table alias. E.g. as table_alias (column_alias1, column_alias2).
protected override bool SupportsColumnAliasesInSource { get; }
Property Value
Methods
BuildCommand(SqlStatement, int)
protected override void BuildCommand(SqlStatement statement, int commandNumber)
Parameters
statementSqlStatementcommandNumberint
BuildCreateTableCommand(SqlTable)
protected override void BuildCreateTableCommand(SqlTable table)
Parameters
tableSqlTable
BuildCreateTableIdentityAttribute1(SqlField)
protected override void BuildCreateTableIdentityAttribute1(SqlField field)
Parameters
fieldSqlField
BuildCreateTablePrimaryKey(SqlCreateTableStatement, string, IEnumerable<string>)
protected override void BuildCreateTablePrimaryKey(SqlCreateTableStatement createTable, string pkName, IEnumerable<string> fieldNames)
Parameters
createTableSqlCreateTableStatementpkNamestringfieldNamesIEnumerable<string>
BuildDataTypeFromDataType(DbDataType, bool, bool)
protected override void BuildDataTypeFromDataType(DbDataType type, bool forCreateTable, bool canBeNull)
Parameters
typeDbDataTypeforCreateTableboolcanBeNullboolType could store
NULLvalues (could be used for column table type generation or for databases with explicit typee nullability like ClickHouse).
BuildDeleteClause(SqlDeleteStatement)
protected override void BuildDeleteClause(SqlDeleteStatement deleteStatement)
Parameters
deleteStatementSqlDeleteStatement
BuildDropTableStatement(SqlDropTableStatement)
protected override void BuildDropTableStatement(SqlDropTableStatement dropTable)
Parameters
dropTableSqlDropTableStatement
BuildEmptyInsert(SqlInsertClause)
protected override void BuildEmptyInsert(SqlInsertClause insertClause)
Parameters
insertClauseSqlInsertClause
BuildExpression(ISqlExpression, bool, bool, string?, ref bool, bool)
protected override StringBuilder BuildExpression(ISqlExpression expr, bool buildTableName, bool checkParentheses, string? alias, ref bool addAlias, bool throwExceptionIfTableNotFound = true)
Parameters
exprISqlExpressionbuildTableNameboolcheckParenthesesboolaliasstringaddAliasboolthrowExceptionIfTableNotFoundbool
Returns
BuildFromClause(SqlStatement, SelectQuery)
protected override void BuildFromClause(SqlStatement statement, SelectQuery selectQuery)
Parameters
statementSqlStatementselectQuerySelectQuery
BuildGroupByBody(GroupingType, List<ISqlExpression>)
protected override void BuildGroupByBody(GroupingType groupingType, List<ISqlExpression> items)
Parameters
groupingTypeGroupingTypeitemsList<ISqlExpression>
BuildInsertOrUpdateQuery(SqlInsertOrUpdateStatement)
protected override void BuildInsertOrUpdateQuery(SqlInsertOrUpdateStatement insertOrUpdate)
Parameters
insertOrUpdateSqlInsertOrUpdateStatement
BuildInsertQuery(SqlStatement, SqlInsertClause, bool)
protected override void BuildInsertQuery(SqlStatement statement, SqlInsertClause insertClause, bool addAlias)
Parameters
statementSqlStatementinsertClauseSqlInsertClauseaddAliasbool
BuildIsDistinctPredicate(IsDistinct)
protected override void BuildIsDistinctPredicate(SqlPredicate.IsDistinct expr)
Parameters
exprSqlPredicate.IsDistinct
BuildMergeStatement(SqlMergeStatement)
protected override void BuildMergeStatement(SqlMergeStatement merge)
Parameters
mergeSqlMergeStatement
BuildObjectName(StringBuilder, SqlObjectName, ConvertType, bool, TableOptions, bool)
Writes database object name into provided StringBuilder instance.
public override StringBuilder BuildObjectName(StringBuilder sb, SqlObjectName name, ConvertType objectType = ConvertType.NameToQueryTable, bool escape = true, TableOptions tableOptions = TableOptions.NotSet, bool withoutSuffix = false)
Parameters
sbStringBuilderString builder for generated object name.
nameSqlObjectNameName of database object (e.g. table, view, procedure or function).
objectTypeConvertTypeType of database object, used to select proper name converter.
escapeboolIf true, apply required escaping to name components. Must be true except rare cases when escaping is not needed.
tableOptionsTableOptionsTable options if called for table. Used to properly generate names for temporary tables.
withoutSuffixboolIf object name have suffix, which could be detached from main name, this parameter disables suffix generation (enables generation of only main name part).
Returns
- StringBuilder
sbparameter value.
BuildOffsetLimit(SelectQuery)
protected override void BuildOffsetLimit(SelectQuery selectQuery)
Parameters
selectQuerySelectQuery
BuildSql()
protected override void BuildSql()
BuildSubQueryExtensions(SqlStatement)
protected override void BuildSubQueryExtensions(SqlStatement statement)
Parameters
statementSqlStatement
BuildTableExtensions(SqlTable, string)
protected override void BuildTableExtensions(SqlTable table, string alias)
Parameters
BuildTruncateTable(SqlTruncateTableStatement)
protected override void BuildTruncateTable(SqlTruncateTableStatement truncateTable)
Parameters
truncateTableSqlTruncateTableStatement
BuildUpdateClause(SqlStatement, SelectQuery, SqlUpdateClause)
protected override void BuildUpdateClause(SqlStatement statement, SelectQuery selectQuery, SqlUpdateClause updateClause)
Parameters
statementSqlStatementselectQuerySelectQueryupdateClauseSqlUpdateClause
CanSkipRootAliases(SqlStatement)
protected override bool CanSkipRootAliases(SqlStatement statement)
Parameters
statementSqlStatement
Returns
CommandCount(SqlStatement)
public override int CommandCount(SqlStatement statement)
Parameters
statementSqlStatement
Returns
Convert(StringBuilder, string, ConvertType)
public override StringBuilder Convert(StringBuilder sb, string value, ConvertType convertType)
Parameters
sbStringBuildervaluestringconvertTypeConvertType
Returns
FinalizeBuildQuery(SqlStatement)
protected override void FinalizeBuildQuery(SqlStatement statement)
Parameters
statementSqlStatement
GetProviderTypeName(IDataContext, DbParameter)
protected override string? GetProviderTypeName(IDataContext dataContext, DbParameter parameter)
Parameters
dataContextIDataContextparameterDbParameter
Returns
IsSqlValuesTableValueTypeRequired(SqlValuesTable, IReadOnlyList<List<ISqlExpression>>, int, int)
Checks that value in specific row and column in enumerable source requires type information generation.
protected override bool IsSqlValuesTableValueTypeRequired(SqlValuesTable source, IReadOnlyList<List<ISqlExpression>> rows, int row, int column)
Parameters
sourceSqlValuesTableMerge source table.
rowsIReadOnlyList<List<ISqlExpression>>Merge source data.
rowintIndex of data row to check. Could contain -1 to indicate that this is a check for empty source NULL value.
columnintIndex of data column to check in row.
Returns
- bool
Returns true, if generated SQL should include type information for value at specified position, otherwise false returned.
LimitFormat(SelectQuery)
protected override string LimitFormat(SelectQuery selectQuery)
Parameters
selectQuerySelectQuery
Returns
StartStatementQueryExtensions(SelectQuery?)
protected override void StartStatementQueryExtensions(SelectQuery? selectQuery)
Parameters
selectQuerySelectQuery