This table lists unsupported syntax or features. Attempt to use them causes an error.
Unsupported Syntax |
Explanation |
|
None. |
Positioned |
A WHERE clause cannot use an updatable cursor to do a positioned UPDATE. |
|
None. |
|
A WHERE clause cannot use a subquery either to specify the primary index or to constrain a non-index column. |
|
You cannot update a primary index column because any change to the rowhash value for a row affects its distribution. |
|
You cannot update a partitioning column because any change to the partitioning for a row affects its location. |
|
You cannot update GENERATED ALWAYS identity column values. |
|
You cannot update system‑derived PARTITION values. If PARTITION is a user‑named column in a table, and not a GENERATED ALWAYS identity column, then it can be updated. |