MySQL: create table, primary key automatically generated?
Question
In mysql, how do I automatically generate primary key for a table?
If I don't specify a primary key in,
CREATE TABLE my_table(
...
...
);
would mysql automatically generate primary key?
1 answers
solution1
1 2016-11-01 17:58:44
No, if you don't specify a primary key it will not create one. To create a primary key, use the following.
CREATE TABLE my_table(
id int NOT NULL,
PRIMARY KEY (id)
);
This will create an "id" column, make it not null, and the primary key.
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