This box lists all of the columns defined for the table that are not currently defined as primary key columns. Use this box to select the column or columns that you want to define as primary key columns and then click on the > push button. You can select one or more columns at the same time.
You can define up to 16 columns to be primary key columns. The sum of their length attributes must not exceed 255 bytes.
Attention: You cannot define columns of data type LOB, LONG VARCHAR, or LONG VARGRAPHIC to be primary key columns.
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