DB Library for C
Compute Result Column Information
These functions can be called after dbnextrow or dbgetrow returns a compute ID.
| Function | Description |
|---|---|
| dbadlen | Returns the actual length of a compute column's data. This function is often used together with dbadata. The value returned by dbadlen can differ for each compute row read by dbnextrow. |
| dbaltcolid | Returns the column ID for a compute column. |
| dbaltlen | Returns the maximum length for a compute column's data. |
| dbaltop | Returns the type of aggregate operator for a compute column. |
| dbalttype | Returns the data type for a compute column. |
| dbaltutype | Returns the user-defined data type for a compute column. |
| dbbylist | Returns the bylist for a compute row. |
| dbnumalts | Returns the number of columns in a compute row. |
| dbnumcompute | Returns the number of COMPUTE clauses in the current set of results. |