SQLDA_T Structure Components

Table 2–12 describes the components of the SQLDA_T structure.

Table 2–12: SQLDA_T Structure Components  
Component
Description
SQLN
Holds the number of occurrences of SQLVAR_T allocated for this descriptor.
COLCNT
Holds the actual number of SQLVAR_T structures that contain valid column or parameter marker data (the actual number of SQLVAR_T structures (that SQLN defines) might be greater than the number of columns in the result set or the number of parameter markers in the prepared statement). The COLCNT must match either of those values exactly.
SQLVAR[1]
This is an array of pointers to the SQLVAR_T structures. The SQLN member of the SQLDA_T structure determines the number of elements in this array.


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