Input Parameter | Significance |
DtvLong idn | ident-number of the record |
char *tab | name of the table |
char *col | name of the BLOB-table column |
Output Parameter | Significance |
int *siz | length of the data segment |
char **dat | pointer to the data segment |
Return Code | Significance |
0 | all ok |
1 | no record for ident-number found |
-1 | database error at reading BLOB-field |