Question

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is this possible to made two primary key in one table

Is it possible to define a primary key on more than one columne in MySQL?

How is this indicated in a create table statement?

Answer 1

Yes, you absolutely can.

Here’s a link:

http://sqlzoo.net/howto/source/z.dir/tip241027/mysql

And here is the basic syntax:

CREATE TABLE myTable(
myCol1 INTEGER  NOT NULL,
myCol2 CHAR(10) NOT NULL,
myCol3 INTEGER NOT NULL,
myCol4 CHAR(1),
PRIMARY KEY (myCol1 , myCol2 , myCol3 )
)