module Sequel::MySQL::MysqlMysql2::DatabaseMethods

   # File lib/sequel/adapters/utils/mysql_mysql2.rb
37 def call_sproc(name, opts=OPTS, &block)
38   args = opts[:args] || [] 
39   execute("CALL #{name}#{args.empty? ? '()' : literal(args)}", opts.merge(:sproc=>false), &block)
40 end

   # File lib/sequel/adapters/utils/mysql_mysql2.rb
44 def execute(sql, opts=OPTS, &block)
45   if opts[:sproc]
46     call_sproc(sql, opts, &block)
47   elsif sql.is_a?(Symbol) || sql.is_a?(Sequel::Dataset::ArgumentMapper)
48     execute_prepared_statement(sql, opts, &block)
49   else
50     synchronize(opts[:server]){|conn| _execute(conn, sql, opts, &block)}
51   end
52 end

   # File lib/sequel/adapters/utils/mysql_mysql2.rb
56 def add_prepared_statements_cache(conn)
57   class << conn
58     attr_accessor :prepared_statements
59   end
60   conn.prepared_statements = {}
61 end

   # File lib/sequel/adapters/utils/mysql_mysql2.rb
63 def database_specific_error_class(exception, opts)
64   case exception.errno
65   when 1048
66     NotNullConstraintViolation
67   when 1062
68     UniqueConstraintViolation
69   when 1451, 1452, 1216, 1217
70     ForeignKeyConstraintViolation
71   when 4025
72     CheckConstraintViolation
73   when 1205
74     DatabaseLockTimeout
75   else
76     super
77   end
78 end