SHOW CREATE SEQUENCE

Syntax

SHOW CREATE SEQUENCE sequence_name;

Description

Shows the CREATE SEQUENCE statement that creates the given sequence. The statement requires the SELECT privilege for the table.

SHOW CREATE SEQUENCE quotes identifiers according to the value of the sql_quote_show_create system variable.

Example

CREATE SEQUENCE s1 START WITH 50;
SHOW CREATE SEQUENCE s1\G;
*************************** 1. row ***************************
       Table: s1
Create Table: CREATE SEQUENCE `s1` start with 50 minvalue 1 maxvalue 9223372036854775806 
  increment by 1 cache 1000 nocycle ENGINE=InnoDB

Notes

If you want to see the underlying table structure used for the SEQUENCE you can use SHOW CREATE TABLE on the SEQUENCE. You can also use SELECT to read the current recorded state of the SEQUENCE:

SHOW CREATE TABLE s1\G
*************************** 1. row ***************************
       Table: s1
Create Table: CREATE TABLE `s1` (
  `next_not_cached_value` bigint(21) NOT NULL,
  `minimum_value` bigint(21) NOT NULL,
  `maximum_value` bigint(21) NOT NULL,
  `start_value` bigint(21) NOT NULL COMMENT 'start value when sequences is created 
     or value if RESTART is used',
  `increment` bigint(21) NOT NULL COMMENT 'increment value',
  `cache_size` bigint(21) unsigned NOT NULL,
  `cycle_option` tinyint(1) unsigned NOT NULL COMMENT '0 if no cycles are allowed, 
     1 if the sequence should begin a new cycle when maximum_value is passed',
  `cycle_count` bigint(21) NOT NULL COMMENT 'How many cycles have been done'
) ENGINE=InnoDB SEQUENCE=1

SELECT * FROM s1\G
*************************** 1. row ***************************
next_not_cached_value: 50
        minimum_value: 1
        maximum_value: 9223372036854775806
          start_value: 50
            increment: 1
           cache_size: 1000
         cycle_option: 0
          cycle_count: 0

The Information Schema SEQUENCES Table also provides information about available sequences:

SELECT * FROM INFORMATION_SCHEMA.SEQUENCES\G
*************************** 1. row ***************************
       SEQUENCE_CATALOG: def
        SEQUENCE_SCHEMA: test
          SEQUENCE_NAME: s1
              DATA_TYPE: bigint
      NUMERIC_PRECISION: 64
NUMERIC_PRECISION_RADIX: 2
          NUMERIC_SCALE: 0
            START_VALUE: 50
          MINIMUM_VALUE: 1
          MAXIMUM_VALUE: 9223372036854775806
              INCREMENT: 1
           CYCLE_OPTION: 0

See Also

• CREATE SEQUENCE

• ALTER SEQUENCE

• Information Schema SEQUENCES Table

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