Module: Sequel::MSSQL::DatasetMethods

### Home Classes Methods

### In Files

- lib/sequel/adapters/shared/mssql.rb

### Methods

- #_import
- #aggregate_dataset
- #complex_expression_sql_append
- #constant_sql_append
- #cross_apply
- #disable_insert_output
- #emulated_function_sql_append
- #escape_like
- #full_text_search
- #insert_select
- #into
- #mssql_unicode_strings
- #multi_insert_sql
- #nolock
- #outer_apply
- #output
- #quoted_identifier_append
- #server_version
- #supports_group_cube?
- #supports_group_rollup?
- #supports_insert_select?
- #supports_intersect_except?
- #supports_is_true?
- #supports_join_using?
- #supports_modifying_joins?
- #supports_multiple_column_in?
- #supports_output_clause?
- #supports_where_true?
- #supports_window_functions?

### Included Modules

- Sequel::EmulateOffsetWithRowNumber

### Files

- CHANGELOG
- MIT-LICENSE
- README.rdoc
- active_record.rdoc
- advanced_associations.rdoc
- association_basics.rdoc
- bin_sequel.rdoc
- cheat_sheet.rdoc
- code_order.rdoc
- core_extensions.rdoc
- dataset_basics.rdoc
- dataset_filtering.rdoc
- extensions.rdoc
- mass_assignment.rdoc
- migration.rdoc
- model_hooks.rdoc
- model_plugins.rdoc
- object_model.rdoc
- opening_databases.rdoc
- postgresql.rdoc
- prepared_statements.rdoc
- querying.rdoc
- reflection.rdoc
- 1.0.txt
- 1.1.txt
- 1.3.txt
- 1.4.0.txt
- 1.5.0.txt
- 2.0.0.txt
- 2.1.0.txt
- 2.10.0.txt
- 2.11.0.txt
- 2.12.0.txt
- 2.2.0.txt
- 2.3.0.txt
- 2.4.0.txt
- 2.5.0.txt
- 2.6.0.txt
- 2.7.0.txt
- 2.8.0.txt
- 2.9.0.txt
- 3.0.0.txt
- 3.1.0.txt
- 3.10.0.txt
- 3.11.0.txt
- 3.12.0.txt
- 3.13.0.txt
- 3.14.0.txt
- 3.15.0.txt
- 3.16.0.txt
- 3.17.0.txt
- 3.18.0.txt
- 3.19.0.txt
- 3.2.0.txt
- 3.20.0.txt
- 3.21.0.txt
- 3.22.0.txt
- 3.23.0.txt
- 3.24.0.txt
- 3.25.0.txt
- 3.26.0.txt
- 3.27.0.txt
- 3.28.0.txt
- 3.29.0.txt
- 3.3.0.txt
- 3.30.0.txt
- 3.31.0.txt
- 3.32.0.txt
- 3.33.0.txt
- 3.34.0.txt
- 3.35.0.txt
- 3.36.0.txt
- 3.37.0.txt
- 3.38.0.txt
- 3.39.0.txt
- 3.4.0.txt
- 3.40.0.txt
- 3.41.0.txt
- 3.42.0.txt
- 3.43.0.txt
- 3.44.0.txt
- 3.45.0.txt
- 3.46.0.txt
- 3.47.0.txt
- 3.48.0.txt
- 3.5.0.txt
- 3.6.0.txt
- 3.7.0.txt
- 3.8.0.txt
- 3.9.0.txt
- 4.0.0.txt
- 4.1.0.txt
- 4.2.0.txt
- 4.3.0.txt
- 4.4.0.txt
- 4.5.0.txt
- schema_modification.rdoc
- security.rdoc
- sharding.rdoc
- sql.rdoc
- testing.rdoc
- thread_safety.rdoc
- transactions.rdoc
- validations.rdoc
- virtual_rows.rdoc

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- Sequel::MySQL::PreparedStatements::DatasetMethods::StoredProcedureMethods
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- Sequel::NamedTimezones::DatabaseMethods
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- Sequel::Plugins::AssociationPks::ClassMethods
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- Sequel::Plugins::AssociationProxies::AssociationProxy
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- Sequel::Plugins::AutoValidations
- Sequel::Plugins::AutoValidations::ClassMethods
- Sequel::Plugins::AutoValidations::InstanceMethods
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- Sequel::Plugins::BlacklistSecurity::ClassMethods
- Sequel::Plugins::BlacklistSecurity::InstanceMethods
- Sequel::Plugins::BlacklistSecurity::InstanceMethods::ExceptionList
- Sequel::Plugins::BooleanReaders
- Sequel::Plugins::BooleanReaders::ClassMethods
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- Sequel::Plugins::Caching::ClassMethods
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- Sequel::Plugins::ClassTableInheritance
- Sequel::Plugins::ClassTableInheritance::ClassMethods
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- Sequel::Plugins::Composition
- Sequel::Plugins::Composition::ClassMethods
- Sequel::Plugins::Composition::InstanceMethods
- Sequel::Plugins::ConstraintValidations
- Sequel::Plugins::ConstraintValidations::ClassMethods
- Sequel::Plugins::ConstraintValidations::DatabaseMethods
- Sequel::Plugins::ConstraintValidations::InstanceMethods
- Sequel::Plugins::DatasetAssociations
- Sequel::Plugins::DatasetAssociations::ClassMethods
- Sequel::Plugins::DatasetAssociations::DatasetMethods
- Sequel::Plugins::DefaultsSetter
- Sequel::Plugins::DefaultsSetter::ClassMethods
- Sequel::Plugins::DefaultsSetter::InstanceMethods
- Sequel::Plugins::Dirty
- Sequel::Plugins::Dirty::InstanceMethods
- Sequel::Plugins::EagerEach
- Sequel::Plugins::EagerEach::DatasetMethods
- Sequel::Plugins::ErrorSplitter
- Sequel::Plugins::ErrorSplitter::InstanceMethods
- Sequel::Plugins::ForceEncoding
- Sequel::Plugins::ForceEncoding::ClassMethods
- Sequel::Plugins::ForceEncoding::InstanceMethods
- Sequel::Plugins::HookClassMethods
- Sequel::Plugins::HookClassMethods::ClassMethods
- Sequel::Plugins::HookClassMethods::InstanceMethods
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- Sequel::Plugins::InputTransformer::ClassMethods
- Sequel::Plugins::InputTransformer::InstanceMethods
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- Sequel::Plugins::InstanceFilters::Error
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- Sequel::Plugins::InstanceHooks
- Sequel::Plugins::InstanceHooks::InstanceMethods
- Sequel::Plugins::JsonSerializer
- Sequel::Plugins::JsonSerializer::ClassMethods
- Sequel::Plugins::JsonSerializer::DatasetMethods
- Sequel::Plugins::JsonSerializer::InstanceMethods
- Sequel::Plugins::JsonSerializer::Literal
- Sequel::Plugins::LazyAttributes
- Sequel::Plugins::LazyAttributes::ClassMethods
- Sequel::Plugins::LazyAttributes::InstanceMethods
- Sequel::Plugins::List
- Sequel::Plugins::List::ClassMethods
- Sequel::Plugins::List::InstanceMethods
- Sequel::Plugins::ManyThroughMany
- Sequel::Plugins::ManyThroughMany::ClassMethods
- Sequel::Plugins::ManyThroughMany::DatasetMethods
- Sequel::Plugins::ManyThroughMany::ManyThroughManyAssociationReflection
- Sequel::Plugins::ManyToOnePkLookup
- Sequel::Plugins::MssqlOptimisticLocking
- Sequel::Plugins::MssqlOptimisticLocking::ClassMethods
- Sequel::Plugins::MssqlOptimisticLocking::InstanceMethods
- Sequel::Plugins::NestedAttributes
- Sequel::Plugins::NestedAttributes::ClassMethods
- Sequel::Plugins::NestedAttributes::InstanceMethods
- Sequel::Plugins::OptimisticLocking
- Sequel::Plugins::OptimisticLocking::ClassMethods
- Sequel::Plugins::OptimisticLocking::Error
- Sequel::Plugins::OptimisticLocking::InstanceMethods
- Sequel::Plugins::PgArrayAssociations
- Sequel::Plugins::PgArrayAssociations::ClassMethods
- Sequel::Plugins::PgArrayAssociations::DatasetMethods
- Sequel::Plugins::PgArrayAssociations::ManyToPgArrayAssociationReflection
- Sequel::Plugins::PgArrayAssociations::PgArrayToManyAssociationReflection
- Sequel::Plugins::PgRow
- Sequel::Plugins::PgRow::ClassMethods
- Sequel::Plugins::PgRow::DatabaseMethods
- Sequel::Plugins::PgRow::InstanceMethods
- Sequel::Plugins::PgTypecastOnLoad
- Sequel::Plugins::PgTypecastOnLoad::ClassMethods
- Sequel::Plugins::PgTypecastOnLoad::InstanceMethods
- Sequel::Plugins::PreparedStatements
- Sequel::Plugins::PreparedStatements::ClassMethods
- Sequel::Plugins::PreparedStatements::InstanceMethods
- Sequel::Plugins::PreparedStatementsAssociations
- Sequel::Plugins::PreparedStatementsAssociations::ClassMethods
- Sequel::Plugins::PreparedStatementsAssociations::InstanceMethods
- Sequel::Plugins::PreparedStatementsSafe
- Sequel::Plugins::PreparedStatementsSafe::ClassMethods
- Sequel::Plugins::PreparedStatementsSafe::InstanceMethods
- Sequel::Plugins::PreparedStatementsWithPk
- Sequel::Plugins::PreparedStatementsWithPk::ClassMethods
- Sequel::Plugins::PreparedStatementsWithPk::DatasetMethods
- Sequel::Plugins::RcteTree
- Sequel::Plugins::Schema
- Sequel::Plugins::Schema::ClassMethods
- Sequel::Plugins::Scissors
- Sequel::Plugins::Scissors::ClassMethods
- Sequel::Plugins::Serialization
- Sequel::Plugins::Serialization::ClassMethods
- Sequel::Plugins::Serialization::InstanceMethods
- Sequel::Plugins::SerializationModificationDetection
- Sequel::Plugins::SerializationModificationDetection::InstanceMethods
- Sequel::Plugins::Sharding
- Sequel::Plugins::Sharding::ClassMethods
- Sequel::Plugins::Sharding::DatasetMethods
- Sequel::Plugins::Sharding::InstanceMethods
- Sequel::Plugins::SingleTableInheritance
- Sequel::Plugins::SingleTableInheritance::ClassMethods
- Sequel::Plugins::SingleTableInheritance::InstanceMethods
- Sequel::Plugins::SkipCreateRefresh
- Sequel::Plugins::SkipCreateRefresh::InstanceMethods
- Sequel::Plugins::StaticCache
- Sequel::Plugins::StaticCache::ClassMethods
- Sequel::Plugins::StaticCache::InstanceMethods
- Sequel::Plugins::StringStripper
- Sequel::Plugins::StringStripper::ClassMethods
- Sequel::Plugins::Subclasses
- Sequel::Plugins::Subclasses::ClassMethods
- Sequel::Plugins::TableSelect
- Sequel::Plugins::TableSelect::ClassMethods
- Sequel::Plugins::TacticalEagerLoading
- Sequel::Plugins::TacticalEagerLoading::DatasetMethods
- Sequel::Plugins::TacticalEagerLoading::InstanceMethods
- Sequel::Plugins::Timestamps
- Sequel::Plugins::Timestamps::ClassMethods
- Sequel::Plugins::Timestamps::InstanceMethods
- Sequel::Plugins::Touch
- Sequel::Plugins::Touch::ClassMethods
- Sequel::Plugins::Touch::InstanceMethods
- Sequel::Plugins::Tree
- Sequel::Plugins::Tree::ClassMethods
- Sequel::Plugins::Tree::InstanceMethods
- Sequel::Plugins::Tree::SingleRoot
- Sequel::Plugins::Tree::SingleRoot::ClassMethods
- Sequel::Plugins::Tree::SingleRoot::InstanceMethods
- Sequel::Plugins::Tree::TreeMultipleRootError
- Sequel::Plugins::TypecastOnLoad
- Sequel::Plugins::TypecastOnLoad::ClassMethods
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- Sequel::Plugins::UnlimitedUpdate::InstanceMethods
- Sequel::Plugins::UpdatePrimaryKey
- Sequel::Plugins::UpdatePrimaryKey::InstanceMethods
- Sequel::Plugins::ValidationClassMethods
- Sequel::Plugins::ValidationClassMethods::ClassMethods
- Sequel::Plugins::ValidationClassMethods::ClassMethods::Generator
- Sequel::Plugins::ValidationClassMethods::InstanceMethods
- Sequel::Plugins::ValidationHelpers
- Sequel::Plugins::ValidationHelpers::InstanceMethods
- Sequel::Plugins::XmlSerializer
- Sequel::Plugins::XmlSerializer::ClassMethods
- Sequel::Plugins::XmlSerializer::DatasetMethods
- Sequel::Plugins::XmlSerializer::InstanceMethods
- Sequel::PoolTimeout
- Sequel::Postgres
- Sequel::Postgres::Adapter
- Sequel::Postgres::AlterTableGenerator
- Sequel::Postgres::ArrayOp
- Sequel::Postgres::ArrayOpMethods
- Sequel::Postgres::CreateTableGenerator
- Sequel::Postgres::Database
- Sequel::Postgres::DatabaseMethods
- Sequel::Postgres::Dataset
- Sequel::Postgres::Dataset::ArgumentMapper
- Sequel::Postgres::Dataset::BindArgumentMethods
- Sequel::Postgres::Dataset::PreparedStatementMethods
- Sequel::Postgres::DatasetMethods
- Sequel::Postgres::DatasetMethods::PreparedStatementMethods
- Sequel::Postgres::ExclusionConstraintViolation
- Sequel::Postgres::HStore
- Sequel::Postgres::HStore::DatabaseMethods
- Sequel::Postgres::HStore::Parser
- Sequel::Postgres::HStoreOp
- Sequel::Postgres::HStoreOpMethods
- Sequel::Postgres::InetDatabaseMethods
- Sequel::Postgres::InetDatasetMethods
- Sequel::Postgres::IntervalDatabaseMethods
- Sequel::Postgres::IntervalDatabaseMethods::Parser
- Sequel::Postgres::IntervalDatasetMethods
- Sequel::Postgres::JSONArray
- Sequel::Postgres::JSONDatabaseMethods
- Sequel::Postgres::JSONHash
- Sequel::Postgres::JSONOp
- Sequel::Postgres::JSONOpMethods
- Sequel::Postgres::LooseCount
- Sequel::Postgres::PGArray
- Sequel::Postgres::PGArray::Creator
- Sequel::Postgres::PGArray::DatabaseMethods
- Sequel::Postgres::PGArray::JSONCreator
- Sequel::Postgres::PGArray::Parser
- Sequel::Postgres::PGRange
- Sequel::Postgres::PGRange::DatabaseMethods
- Sequel::Postgres::PGRange::DatasetMethods
- Sequel::Postgres::PGRange::Parser
- Sequel::Postgres::PGRow
- Sequel::Postgres::PGRow::ArrayRow
- Sequel::Postgres::PGRow::DatabaseMethods
- Sequel::Postgres::PGRow::HashRow
- Sequel::Postgres::PGRow::Parser
- Sequel::Postgres::PGRow::Splitter
- Sequel::Postgres::PGRowOp
- Sequel::Postgres::PGRowOp::ExpressionMethods
- Sequel::Postgres::RangeOp
- Sequel::Postgres::RangeOpMethods
- Sequel::Postgres::StaticCacheUpdater
- Sequel::PrettyTable
- Sequel::Progress
- Sequel::Progress::DatabaseMethods
- Sequel::Progress::DatasetMethods
- Sequel::Qualifier
- Sequel::QueryLiterals
- Sequel::Rollback
- Sequel::SQL
- Sequel::SQL::AliasMethods
- Sequel::SQL::AliasedExpression
- Sequel::SQL::BitwiseMethods
- Sequel::SQL::Blob
- Sequel::SQL::BooleanConstant
- Sequel::SQL::BooleanExpression
- Sequel::SQL::BooleanMethods
- Sequel::SQL::Builders
- Sequel::SQL::CaseExpression
- Sequel::SQL::Cast
- Sequel::SQL::CastMethods
- Sequel::SQL::ColumnAll
- Sequel::SQL::ComplexExpression
- Sequel::SQL::ComplexExpressionMethods
- Sequel::SQL::Constant
- Sequel::SQL::Constants
- Sequel::SQL::DateAdd
- Sequel::SQL::DateAdd::DatasetMethods
- Sequel::SQL::DelayedEvaluation
- Sequel::SQL::EmulatedFunction
- Sequel::SQL::Expression
- Sequel::SQL::Function
- Sequel::SQL::GenericExpression
- Sequel::SQL::Identifier
- Sequel::SQL::InequalityMethods
- Sequel::SQL::JoinClause
- Sequel::SQL::JoinOnClause
- Sequel::SQL::JoinUsingClause
- Sequel::SQL::NegativeBooleanConstant
- Sequel::SQL::NumericExpression
- Sequel::SQL::NumericMethods
- Sequel::SQL::OperatorBuilders
- Sequel::SQL::OrderMethods
- Sequel::SQL::OrderedExpression
- Sequel::SQL::PlaceholderLiteralString
- Sequel::SQL::QualifiedIdentifier
- Sequel::SQL::QualifyingMethods
- Sequel::SQL::StringConcatenationMethods
- Sequel::SQL::StringExpression
- Sequel::SQL::StringMethods
- Sequel::SQL::Subscript
- Sequel::SQL::SubscriptMethods
- Sequel::SQL::ValueList
- Sequel::SQL::VirtualRow
- Sequel::SQL::Window
- Sequel::SQL::WindowFunction
- Sequel::SQL::Wrapper
- Sequel::SQLTime
- Sequel::SQLite
- Sequel::SQLite::Database
- Sequel::SQLite::DatabaseMethods
- Sequel::SQLite::Dataset
- Sequel::SQLite::Dataset::ArgumentMapper
- Sequel::SQLite::Dataset::BindArgumentMethods
- Sequel::SQLite::Dataset::PreparedStatementMethods
- Sequel::SQLite::DatasetMethods
- Sequel::Schema
- Sequel::Schema::AlterTableGenerator
- Sequel::Schema::CreateTableGenerator
- Sequel::Schema::Generator
- Sequel::SchemaCaching
- Sequel::SchemaDumper
- Sequel::SelectRemove
- Sequel::Sequel3DatasetMethods
- Sequel::SerializationFailure
- Sequel::ServerBlock
- Sequel::SetOverrides
- Sequel::ShardedSingleConnectionPool
- Sequel::ShardedThreadedConnectionPool
- Sequel::SimpleMigration
- Sequel::SingleConnectionPool
- Sequel::SqlAnywhere
- Sequel::SqlAnywhere::Database
- Sequel::SqlAnywhere::DatabaseMethods
- Sequel::SqlAnywhere::Dataset
- Sequel::SqlAnywhere::DatasetMethods
- Sequel::SqlAnywhere::SQLAnywhereException
- Sequel::Swift
- Sequel::Swift::Database
- Sequel::Swift::Dataset
- Sequel::Swift::MySQL
- Sequel::Swift::MySQL::DatabaseMethods
- Sequel::Swift::MySQL::Dataset
- Sequel::Swift::Postgres
- Sequel::Swift::Postgres::DatabaseMethods
- Sequel::Swift::SQLite
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- Sequel::ThreadLocalTimezones
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- Sequel::TimestampMigrator
- Sequel::Timezones
- Sequel::TinyTDS
- Sequel::TinyTDS::Database
- Sequel::TinyTDS::Dataset
- Sequel::TinyTDS::Dataset::ArgumentMapper
- Sequel::TinyTDS::Dataset::PreparedStatementMethods
- Sequel::ToDot
- Sequel::ToDot::DatasetMethods
- Sequel::UnbindDuplicate
- Sequel::Unbinder
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- Sequel::UniqueConstraintViolation
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- String
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No matching classes.

# Sequel::MSSQL::DatasetMethods

### Constants

APOS
APOS_RE
BACKSLASH_CRLF_RE
BACKSLASH_CRLF_REPLACE
BOOL_FALSE
BOOL_TRUE
BRACKET_CLOSE
BRACKET_OPEN
CASE_INSENSITIVE_COLLATION
CASE_SENSITIVE_COLLATION
COMMA
COMMA_SEPARATOR
CONSTANT_MAP
CROSS_APPLY
DATEPART_OPEN
DATEPART_SECOND_CLOSE
DATEPART_SECOND_MIDDLE
DATEPART_SECOND_OPEN
DEFAULT_TIMESTAMP_FORMAT
DELETE_CLAUSE_METHODS
DOUBLE_APOS
DOUBLE_BRACKET_CLOSE
EXTRACT_MAP
FORMAT_DATE
FROM
HEX_START
HSTAR
INSERT_CLAUSE_METHODS
INTO
NOLOCK
OUTER_APPLY
OUTPUT
OUTPUT_INSERTED
PAREN_CLOSE
PAREN_SPACE_OPEN
SELECT_CLAUSE_METHODS
SELECT_SPACE
SPACE
TIMESTAMP_USEC_FORMAT
TOP
TOP_PAREN
UNICODE_STRING_START
UNION_ALL
UPDATE_CLAUSE_METHODS
UPDATE_CLAUSE_METHODS_2000
UPDLOCK
WILDCARD

### Attributes

mssql_unicode_strings[W]

Allow overriding of the mssql_unicode_strings option at the dataset level.

### Public Instance Methods

complex_expression_sql_append(sql, op, args) click to toggle source

MSSQL uses + for string concatenation, and LIKE is case insensitive by default.

    # File lib/sequel/adapters/shared/mssql.rb, line 472
    def complex_expression_sql_append(sql, op, args)
      case op
      when :'||'
        super(sql, :+, args)
      when :LIKE, :"NOT LIKE"
        super(sql, op, args.map{|a| LiteralString.new("(#{literal(a)} COLLATE #{CASE_SENSITIVE_COLLATION})")})
      when :ILIKE, :"NOT ILIKE"
        super(sql, (op == :ILIKE ? :LIKE : :"NOT LIKE"), args.map{|a| LiteralString.new("(#{literal(a)} COLLATE #{CASE_INSENSITIVE_COLLATION})")})
      when :<<
        sql << complex_expression_arg_pairs(args){|a, b| "(#{literal(a)} * POWER(2, #{literal(b)}))"}
      when :>>
        sql << complex_expression_arg_pairs(args){|a, b| "(#{literal(a)} / POWER(2, #{literal(b)}))"}
      when :extract
        part = args.at(0)
        raise(Sequel::Error, "unsupported extract argument: #{part.inspect}") unless format = EXTRACT_MAP[part]
        if part == :second
          expr = literal(args.at(1))
          sql << DATEPART_SECOND_OPEN << format.to_s << COMMA << expr << DATEPART_SECOND_MIDDLE << expr << DATEPART_SECOND_CLOSE
        else
          sql << DATEPART_OPEN << format.to_s << COMMA
          literal_append(sql, args.at(1))
          sql << PAREN_CLOSE
        end
      else
        super
      end
    end

constant_sql_append(sql, constant) click to toggle source

MSSQL doesn't support the SQL standard CURRENT_DATE or CURRENT_TIME

    # File lib/sequel/adapters/shared/mssql.rb, line 501
    def constant_sql_append(sql, constant)
      if c = CONSTANT_MAP[constant]
        sql << c
      else
        super
      end
    end

cross_apply(table) click to toggle source

Uses CROSS APPLY to join the given table into the current dataset.

    # File lib/sequel/adapters/shared/mssql.rb, line 510
    def cross_apply(table)
      join_table(:cross_apply, table)
    end

disable_insert_output() click to toggle source

Disable the use of INSERT OUTPUT

    # File lib/sequel/adapters/shared/mssql.rb, line 515
    def disable_insert_output
      clone(:disable_insert_output=>true)
    end

emulated_function_sql_append(sql, f) click to toggle source

There is no function on Microsoft SQL Server that does character length and respects trailing spaces (datalength respects trailing spaces, but counts bytes instead of characters). Use a hack to work around the trailing spaces issue.

    # File lib/sequel/adapters/shared/mssql.rb, line 528
    def emulated_function_sql_append(sql, f)
      case f.f
      when :char_length
        literal_append(sql, SQL::Function.new(:len, Sequel.join([f.args.first, 'x'])) - 1)
      when :trim
        literal_append(sql, SQL::Function.new(:ltrim, SQL::Function.new(:rtrim, f.args.first)))
      else
        super
      end
    end

escape_like(string) click to toggle source

MSSQL treats [] as a metacharacter in LIKE expresions.

    # File lib/sequel/adapters/shared/mssql.rb, line 520
    def escape_like(string)
      string.gsub(/[\\%_\[\]]/){|m| "\\#{m}"}
    end

full_text_search(cols, terms, opts = OPTS) click to toggle source

MSSQL uses the CONTAINS keyword for full text search

    # File lib/sequel/adapters/shared/mssql.rb, line 540
    def full_text_search(cols, terms, opts = OPTS)
      terms = "\"#{terms.join('" OR "')}\"" if terms.is_a?(Array)
      filter("CONTAINS (?, ?)", cols, terms)
    end

insert_select(*values) click to toggle source

Use the OUTPUT clause to get the value of all columns for the newly inserted record.

    # File lib/sequel/adapters/shared/mssql.rb, line 546
    def insert_select(*values)
      return unless supports_insert_select?
      naked.clone(default_server_opts(:sql=>output(nil, [SQL::ColumnAll.new(:inserted)]).insert_sql(*values))).single_record
    end

into(table) click to toggle source

Specify a table for a SELECT ... INTO query.

    # File lib/sequel/adapters/shared/mssql.rb, line 552
    def into(table)
      clone(:into => table)
    end

mssql_unicode_strings() click to toggle source

Use the database's mssql_unicode_strings setting if the dataset hasn't overridden it.

    # File lib/sequel/adapters/shared/mssql.rb, line 467
    def mssql_unicode_strings
      defined?(@mssql_unicode_strings) ? @mssql_unicode_strings : (@mssql_unicode_strings = db.mssql_unicode_strings)
    end

multi_insert_sql(columns, values) click to toggle source

MSSQL uses a UNION ALL statement to insert multiple values at once.

    # File lib/sequel/adapters/shared/mssql.rb, line 557
    def multi_insert_sql(columns, values)
      c = false
      sql = LiteralString.new('')
      u = UNION_ALL
      values.each do |v|
        sql << u if c
        sql << SELECT_SPACE
        expression_list_append(sql, v)
        c ||= true
      end
      [insert_sql(columns, sql)]
    end

nolock() click to toggle source

Allows you to do a dirty read of uncommitted data using WITH (NOLOCK).

    # File lib/sequel/adapters/shared/mssql.rb, line 571
    def nolock
      lock_style(:dirty)
    end

outer_apply(table) click to toggle source

Uses OUTER APPLY to join the given table into the current dataset.

    # File lib/sequel/adapters/shared/mssql.rb, line 576
    def outer_apply(table)
      join_table(:outer_apply, table)
    end

output(into, values) click to toggle source

Include an OUTPUT clause in the eventual INSERT, UPDATE, or DELETE query.

The first argument is the table to output into, and the second argument is either an Array of column values to select, or a Hash which maps output column names to selected values, in the style of insert or update.

Output into a returned result set is not currently supported.

Examples:

    dataset.output(:output_table, [:deleted__id, :deleted__name])
    dataset.output(:output_table, :id => :inserted__id, :name => :inserted__name)

    # File lib/sequel/adapters/shared/mssql.rb, line 592
    def output(into, values)
      raise(Error, "SQL Server versions 2000 and earlier do not support the OUTPUT clause") unless supports_output_clause?
      output = {}
      case values
        when Hash
          output[:column_list], output[:select_list] = values.keys, values.values
        when Array
          output[:select_list] = values
      end
      output[:into] = into
      clone({:output => output})
    end

quoted_identifier_append(sql, name) click to toggle source

MSSQL uses [] to quote identifiers.

    # File lib/sequel/adapters/shared/mssql.rb, line 606
    def quoted_identifier_append(sql, name)
      sql << BRACKET_OPEN << name.to_s.gsub(/\]/, DOUBLE_BRACKET_CLOSE) << BRACKET_CLOSE
    end

server_version() click to toggle source

The version of the database server.

    # File lib/sequel/adapters/shared/mssql.rb, line 611
    def server_version
      db.server_version(@opts[:server])
    end

supports_group_cube?() click to toggle source

MSSQL 2005+ supports GROUP BY CUBE.

    # File lib/sequel/adapters/shared/mssql.rb, line 616
    def supports_group_cube?
      is_2005_or_later?
    end

supports_group_rollup?() click to toggle source

MSSQL 2005+ supports GROUP BY ROLLUP

    # File lib/sequel/adapters/shared/mssql.rb, line 621
    def supports_group_rollup?
      is_2005_or_later?
    end

supports_insert_select?() click to toggle source

MSSQL supports insert_select via the OUTPUT clause.

    # File lib/sequel/adapters/shared/mssql.rb, line 626
    def supports_insert_select?
      supports_output_clause? && !opts[:disable_insert_output]
    end

supports_intersect_except?() click to toggle source

MSSQL 2005+ supports INTERSECT and EXCEPT

    # File lib/sequel/adapters/shared/mssql.rb, line 631
    def supports_intersect_except?
      is_2005_or_later?
    end

supports_is_true?() click to toggle source

MSSQL does not support IS TRUE

    # File lib/sequel/adapters/shared/mssql.rb, line 636
    def supports_is_true?
      false
    end

supports_join_using?() click to toggle source

MSSQL doesn't support JOIN USING

    # File lib/sequel/adapters/shared/mssql.rb, line 641
    def supports_join_using?
      false
    end

supports_modifying_joins?() click to toggle source

MSSQL 2005+ supports modifying joined datasets

    # File lib/sequel/adapters/shared/mssql.rb, line 646
    def supports_modifying_joins?
      is_2005_or_later?
    end

supports_multiple_column_in?() click to toggle source

MSSQL does not support multiple columns for the IN/NOT IN operators

    # File lib/sequel/adapters/shared/mssql.rb, line 651
    def supports_multiple_column_in?
      false
    end

supports_output_clause?() click to toggle source

MSSQL 2005+ supports the output clause.

    # File lib/sequel/adapters/shared/mssql.rb, line 656
    def supports_output_clause?
      is_2005_or_later?
    end

supports_where_true?() click to toggle source

MSSQL cannot use WHERE 1.

    # File lib/sequel/adapters/shared/mssql.rb, line 666
    def supports_where_true?
      false
    end

supports_window_functions?() click to toggle source

MSSQL 2005+ supports window functions

    # File lib/sequel/adapters/shared/mssql.rb, line 661
    def supports_window_functions?
      true
    end

### Protected Instance Methods

_import(columns, values, opts=OPTS) click to toggle source

If returned primary keys are requested, use OUTPUT unless already set on the dataset. If OUTPUT is already set, use existing returning values. If OUTPUT is only set to return a single columns, return an array of just that column. Otherwise, return an array of hashes.

    # File lib/sequel/adapters/shared/mssql.rb, line 676
    def _import(columns, values, opts=OPTS)
      if opts[:return] == :primary_key && !@opts[:output]
        output(nil, [SQL::QualifiedIdentifier.new(:inserted, first_primary_key)])._import(columns, values, opts)
      elsif @opts[:output]
        statements = multi_insert_sql(columns, values)
        @db.transaction(opts.merge(:server=>@opts[:server])) do
          statements.map{|st| with_sql(st)}
        end.first.map{|v| v.length == 1 ? v.values.first : v}
      else
        super
      end
    end

aggregate_dataset() click to toggle source

MSSQL does not allow ordering in sub-clauses unless 'top' (limit) is specified

    # File lib/sequel/adapters/shared/mssql.rb, line 690
    def aggregate_dataset
      (options_overlap(Sequel::Dataset::COUNT_FROM_SELF_OPTS) && !options_overlap([:limit])) ? unordered.from_self : super
    end

[Validate]

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