Module Sequel::MSSQL::DatabaseMethods
In: lib/sequel/adapters/shared/mssql.rb

Methods

database_type   server_version   supports_savepoints?   supports_transaction_isolation_levels?   tables  

Constants

AUTO_INCREMENT = 'IDENTITY(1,1)'.freeze
SERVER_VERSION_RE = /^(\d+)\.(\d+)\.(\d+)/.freeze
SERVER_VERSION_SQL = "SELECT CAST(SERVERPROPERTY('ProductVersion') AS varchar)".freeze
SQL_BEGIN = "BEGIN TRANSACTION".freeze
SQL_COMMIT = "COMMIT TRANSACTION".freeze
SQL_ROLLBACK = "IF @@TRANCOUNT > 0 ROLLBACK TRANSACTION".freeze
SQL_ROLLBACK_TO_SAVEPOINT = 'IF @@TRANCOUNT > 0 ROLLBACK TRANSACTION autopoint_%d'.freeze
SQL_SAVEPOINT = 'SAVE TRANSACTION autopoint_%d'.freeze
DECIMAL_TYPE_RE = /number|numeric|decimal/io   The types to check for 0 scale to transform :decimal types to :integer.

Public Instance methods

database_type()

Microsoft SQL Server uses the :mssql type.

[Source]

    # File lib/sequel/adapters/shared/mssql.rb, line 19
19:       def database_type
20:         :mssql
21:       end
server_version(server=nil)

The version of the MSSQL server, as an integer (e.g. 10001600 for SQL Server 2008 Express).

[Source]

    # File lib/sequel/adapters/shared/mssql.rb, line 25
25:       def server_version(server=nil)
26:         return @server_version if @server_version
27:         @server_version = synchronize(server) do |conn|
28:           (conn.server_version rescue nil) if conn.respond_to?(:server_version)
29:         end
30:         unless @server_version
31:           m = SERVER_VERSION_RE.match(fetch(SERVER_VERSION_SQL).single_value.to_s)
32:           @server_version = (m[1].to_i * 1000000) + (m[2].to_i * 10000) + m[3].to_i
33:         end
34:         @server_version
35:       end
supports_savepoints?()

MSSQL supports savepoints, though it doesn‘t support committing/releasing them savepoint

[Source]

    # File lib/sequel/adapters/shared/mssql.rb, line 38
38:       def supports_savepoints?
39:         true
40:       end
supports_transaction_isolation_levels?()

MSSQL supports transaction isolation levels

[Source]

    # File lib/sequel/adapters/shared/mssql.rb, line 43
43:       def supports_transaction_isolation_levels?
44:         true
45:       end
tables(opts={})

Microsoft SQL Server supports using the INFORMATION_SCHEMA to get information on tables.

[Source]

    # File lib/sequel/adapters/shared/mssql.rb, line 49
49:       def tables(opts={})
50:         m = output_identifier_meth
51:         metadata_dataset.from(:information_schema__tables___t).
52:           select(:table_name).
53:           filter(:table_type=>'BASE TABLE', :table_schema=>(opts[:schema]||default_schema||'dbo').to_s).
54:           map{|x| m.call(x[:table_name])}
55:       end

[Validate]