Use this keyword to perform the following functions, depending on the parameter values specified:
The formats of the keyword are:
CHECK(validity-checking-code [. . .]) CHECK(keyboard-control-code [. . .]) CHECK(cursor-control-code)
The following CHECK keywords are the preferred form of other DDS keywords:
The following CHECK keyword functions can also be specified using the Change Input Default (CHGINPDFT) keyword at the file, record, or field level:
Option indicators are valid only for CHECK(ER) and CHECK(ME).
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