Expression of the String type which defines Oracle SQL hint. It is used as an instruction for the performance optimizer of the SQL command. The value is used without the opening and terminating characters /*+ <orahint> */. The example is mentioned here.
Table must be opened with the access _DB_MODIFY. The type of the inserted row must be correct. Values of all items of the inserted row must be valid and the structure type of the local variable must be equal to the table type.
For using the function on Microsoft SQL Server platform, there must be defined the primary key or at least unique index for a table from the platform. For the platform Sybase and Oracle, the function works without these limitations.
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