MySQL: Determine Table's Primary Key Dynamically

Question

I\'m, generating a SQL query like this in PHP:

$sql = sprintf(\"UPDATE %s SET %s = %s WHERE %s = %s\", ...);

Since almost every part of thi

Answer 1

Also

SHOW INDEX FROM  WHERE Key_name = 'PRIMARY';

Is equivalent to

SHOW KEYS FROM  WHERE Key_name = 'PRIMARY';