set auto increment initial value for mysql table

Question

I\'m trying to create a table in my sql using PHP but I\'m not sure how to set an initial value for the auto increment field.

This is what i have so far:

Answer 1

Assuming your auto increment column is the first one:

 $sql = "CREATE TABLE MY_TABLE
 (
 table_1 INT AUTO_INCREMENT,
 table_2 varchar(45),
 table_3 varchar(999),
 table_4 varchar(45)
 ) AUTO_INCREMENT = 231";

The starting value will be, here, 231.

I changed the column type to INT, because you can't use a VARCHAR for auto-increment.

(and remove the or die(mysql_error()) on this line btw, its pointless because it's just a variable creation, not a SQL query being executed)

Answer 2

If you don't have the auto-increment column in the table yet:

$sql = "ALTER TABLE MY_TABLE ADD id INT UNSIGNED NOT NULL AUTO_INCREMENT,
    ADD INDEX (id);";

Then to set the auto-increment starting value:

$sql = "ALTER TABLE MY_TABLE AUTO_INCREMENT = 111111;";

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Potential duplicate of this post.