| Search Columns table for @key |
| @option sets the scope of the search: Returns those rows, which had a hit. They will have a weblink to the parent table. exec spDocKeySearch 'lupt', 1 |
| name | type | length | inout | pnum |
| @option | int | 4 | input | 2 |
| @key | varchar | 32 | input | 1 |