DtvLong dal_dbi_mod_cns (idn, ck1, ck2, dl1, dl2)

Changes a constraint entry in local memory.

Input Parameters Significance
DtvLong idn ident number of the constraint
DtvLong *ck1 1. check value
DtvLong *ck2 2. check value
char *dl1 1. delete flag (> - < , > N < , > D < )
char *dl2 2. delete flag (> - < , > N < , > D < )

Output Parameters Significance
no -

Return Code Significance
0 no error
1 data structure not initialized
2 ident number does not exist
3 wrong check value
4 wrong check flag

If you pass zero pointers for input parameters, the corresponding values are not modified.