SQLColumns generates information about columns in a specific table. The fields listed in this table contain important LOB-specific information.
| Column Name | Value |
|---|---|
| DATA_TYPE | SQL_LONGVARBINARY for BLOB columns SQL_LONGVARCHAR for CLOB columns |
| TYPE_NAME | BLOB for SQL_LONGVARBINARY CLOB for SQL_LONGVARCHAR |
| IS_NULLABLE | No Set to No because of the restriction on the use of LOB NULL values in SQLPutData.
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