The types to check for 0 scale to transform :decimal types to :integer.
Whether to use N" to quote strings, which allows unicode characters inside the strings. True by default for compatibility, can be set to false for a possible performance increase. This sets the default for all datasets created from this Database object.
Microsoft SQL Server uses the :mssql type.
# File lib/sequel/adapters/shared/mssql.rb, line 27 def database_type :mssql end
Use the system tables to get index information
# File lib/sequel/adapters/shared/mssql.rb, line 32 def indexes(table, opts={}) m = output_identifier_meth im = input_identifier_meth indexes = {} metadata_dataset.from(:sys__tables___t). join(:sys__indexes___i, :object_id=>:object_id). join(:sys__index_columns___ic, :object_id=>:object_id, :index_id=>:index_id). join(:sys__columns___c, :object_id=>:object_id, :column_id=>:column_id). select(:i__name, :i__is_unique, :c__name___column). where{{t__name=>im.call(table)}}. where(:i__is_primary_key=>0, :i__is_disabled=>0). order(:i__name, :ic__index_column_id). each do |r| index = indexes[m.call(r[:name])] ||= {:columns=>[], :unique=>(r[:is_unique] && r[:is_unique]!=0)} index[:columns] << m.call(r[:column]) end indexes end
The version of the MSSQL server, as an integer (e.g. 10001600 for SQL Server 2008 Express).
# File lib/sequel/adapters/shared/mssql.rb, line 53 def server_version(server=nil) return @server_version if @server_version @server_version = synchronize(server) do |conn| (conn.server_version rescue nil) if conn.respond_to?(:server_version) end unless @server_version m = SERVER_VERSION_RE.match(fetch(SERVER_VERSION_SQL).single_value.to_s) @server_version = (m[1].to_i * 1000000) + (m[2].to_i * 10000) + m[3].to_i end @server_version end
MSSQL supports savepoints, though it doesn't support committing/releasing them savepoint
# File lib/sequel/adapters/shared/mssql.rb, line 66 def supports_savepoints? true end
MSSQL supports transaction isolation levels
# File lib/sequel/adapters/shared/mssql.rb, line 71 def supports_transaction_isolation_levels? true end
Microsoft SQL Server supports using the INFORMATION_SCHEMA to get information on tables.
# File lib/sequel/adapters/shared/mssql.rb, line 77 def tables(opts={}) information_schema_tables('BASE TABLE', opts) end
Microsoft SQL Server supports using the INFORMATION_SCHEMA to get information on views.
# File lib/sequel/adapters/shared/mssql.rb, line 83 def views(opts={}) information_schema_tables('VIEW', opts) end
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