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How do I view the auto_increment value for a table in MySQL?
In order to view the auto_increment value for a table, you can use SHOW TABLE command.
The syntax is as follows
SHOW TABLE STATUS LIKE 'yourTableName'\G
The syntax is as follows
SELECT `AUTO_INCREMENT` FROM `information_schema`.`TABLES` WHERE `TABLE_SCHEMA` = ‘yourDatabaseName’ AND `TABLE_NAME` =’yourTableName';
To understand the above syntaxes, let us create a table. The query to create a table is as follows
mysql> create table viewAutoIncrementDemo -> ( -> UserId int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> UserName varchar(20) -> ); Query OK, 0 rows affected (0.59 sec)
Now you can insert some records in the table using insert command. The query is as follows −
mysql> insert into viewAutoIncrementDemo(UserName) values('John');
Query OK, 1 row affected (0.18 sec)
mysql> insert into viewAutoIncrementDemo(UserName) values('Carol');
Query OK, 1 row affected (0.14 sec)
mysql> insert into viewAutoIncrementDemo(UserName) values('Bob');
Query OK, 1 row affected (0.08 sec)
mysql> insert into viewAutoIncrementDemo(UserName) values('Sam');
Query OK, 1 row affected (0.12 sec)
mysql> insert into viewAutoIncrementDemo(UserName) values('Mike');
Query OK, 1 row affected (0.14 sec)
mysql> insert into viewAutoIncrementDemo(UserName) values('David');
Query OK, 1 row affected (0.16 sec)
mysql> insert into viewAutoIncrementDemo(UserName) values('Larry');
Query OK, 1 row affected (0.11 sec)Display all records from the table using select statement. The query is as follows −
mysql> select *from viewAutoIncrementDemo;
The following is the output
+--------+----------+ | UserId | UserName | +--------+----------+ | 1 | John | | 2 | Carol | | 3 | Bob | | 4 | Sam | | 5 | Mike | | 6 | David | | 7 | Larry | +--------+----------+ 7 rows in set (0.00 sec)
Here is the query to view the auto_increment value for a table
mysql> SHOW TABLE STATUS LIKE 'viewAutoIncrementDemo'\G
The following is the output
*************************** 1. row ***************************
Name: viewautoincrementdemo
Engine: InnoDB
Version: 10
Row_format: Dynamic
Rows: 7
Avg_row_length: 2340
Data_length: 16384
Max_data_length: 0
Index_length: 0
Data_free: 0
Auto_increment: 8
Create_time: 2019-03-02 04:05:20
Update_time: 2019-03-02 04:06:11
Check_time: NULL
Collation: utf8_general_ci
Checksum: NULL
Create_options:
Comment:
1 row in set (0.08 sec)The following is the second query
mysql> SELECT `AUTO_INCREMENT` -> FROM `information_schema`.`TABLES` -> WHERE `TABLE_SCHEMA` = 'sample' -> AND `TABLE_NAME` = 'viewAutoIncrementDemo';
The following is the output
+----------------+ | AUTO_INCREMENT | +----------------+ | 8 | +----------------+ 1 row in set (0.00 sec)
Updated on: 30-Jul-2019
1K+ Views
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