A select descriptor after the DESCRIBE is described below
| Empty column to indicate seperation of descriptor from Data Buffers | Data Buffers | ||
| SQLDNUM (reset by program) | 1 | ||
| SQLDFND | 1 | (Set by program) | |
| S1.SQLDV | 1,2,3,4,5,6,7,8,9,10 | ||
| S2.SQLDV | |||
| S3.SQLDV | |||
| S1.SQLDVLN | 10 (Set by DESCRIBE) (# = internal binary numbers) |
SEL_DV | |
| S2.SQLDVLN |
# (Set by DESCRIBE) |
||
| S3.SQLDVLN | # (Set by DESCRIBE) (# = internal binary numbers) |
||
| S1.SELDVTYP | 1 | ||
| S2.SELDVTYP | 2 | ||
| S3.SELDVTYP | 2 | ||
| SEL_DI | |||
| S1.SQLDI | 0 | ||
| S2.SQLDI | 0 | ||
| S3.SQLDI | 0 | ||
| S1.SQLDH±VNAME | E N A M E | ||
| S2.SQLDH±VNAME | E M P N O | ||
| S3.SQLDH±VNAME | C O M M | ||
| 1 2 3 4 5 | |||
| SEL_DH_VNAME | |||
| S1.SQLDH±MAX±VNAMEL | 5 | ||
| S2.SQLDH±MAX±VNAMEL | 5 | ||
| S3.SQLDH±MAX±VNAMEL | 5 | ||
| S1.SQLDH±CUR±VNAMEL | 5(Set by DESCRIBE) | ||
| S2.SQLDH±CUR±VNAMEL | 4(Set by DESCRIBE) | ||
| S3.SQLDH±CUR±VNAMEL | 4(Set by DESCRIBE) |