The SQLDA fields have the following meanings:
| Field | Description |
|---|---|
| sqldaid | An 8-byte character field that contains the string SQLDA as an identification of the SQLDA structure. This field helps in debugging when you are looking at memory contents. |
| sqldabc | A 32-bit integer containing the length of the SQLDA structure. |
| sqln | The number of variable descriptors allocated in the sqlvar array. |
| sqld | The number of variable descriptors that are valid (contain information describing a host variable). This field is set by the DESCRIBE statement. As well, you can set it when supplying data to the database server. |
| sqlvar | An array of descriptors of type struct sqlvar, each describing a host variable. |