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CI_DB_driver::primary()

primary($table)

Parameters:	$table (string) – Table name
Returns:	The primary key name, FALSE if none
Return type:	string

Retrieves the primary key of a table.

Note

If the database platform does not support primary key detection, the first column name may be assumed as the primary key.

Links:

http://www.codeigniter.com/user_guide/database/db_driver_reference.html#CI_DB_driver::primary

doc_CodeIgniter

2016-10-15 16:31:07

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