Before performing a FETCH statement using an SQLDA structure, follow the procedure below:
- The application must initialize SQLN and SQLDABC as described above.
- The application must then insert, into the SQLDATA field, the address of each program variable that will receive the data
from the corresponding column. (The SQLDATA field is part of SQLVAR).
- If indicator variables are used, SQLIND must also be set to the corresponding address of the indicator variable.
The data type field (SQLTYPE) and length (SQLLEN) are filled with information from a PREPARE INTO or a DESCRIBE statement.
These values can be overwritten by the application prior to a FETCH statement.