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How do I set the initial value for an "id" column in a MySQL table that start from 1001?
I want to do an insert "INSERT INTO users (name, email) VALUES ('{$name}', '{$email}')";
Without specifying the initial value for the id column.
200
In MySQL, the syntax to change the starting value for an AUTO_INCREMENT column using the ALTER TABLE statement is: ALTER TABLE table_name AUTO_INCREMENT = start_value; table_name.
Auto-increment allows a unique number to be generated automatically when a new record is inserted into a table. Often this is the primary key field that we would like to be created automatically every time a new record is inserted.
One of the important tasks while creating a table is setting the Primary Key. The Auto Increment feature allows you to set the MySQL Auto Increment Primary Key field. This automatically generates a sequence of unique numbers whenever a new row of data is inserted into the table.
Use this:
ALTER TABLE users AUTO_INCREMENT=1001; or if you haven't already added an id column, also add it
ALTER TABLE users ADD id INT UNSIGNED NOT NULL AUTO_INCREMENT, ADD INDEX (id); Step 1, create your table:
create table penguins( my_id int(16) auto_increment, skipper varchar(4000), PRIMARY KEY (my_id) ) Step 2, set the start number for auto increment primary key:
ALTER TABLE penguins AUTO_INCREMENT=1001; Step 3, insert some rows:
insert into penguins (skipper) values("We need more power!"); insert into penguins (skipper) values("Time to fire up"); insert into penguins (skipper) values("kowalski's nuclear reactor."); Step 4, interpret the output:
select * from penguins prints:
'1001', 'We need more power!' '1002', 'Time to fire up' '1003', 'kowalski\'s nuclear reactor' If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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