A cursor is a pointer to this context area. PL/SQL controls the context area through a cursor. A cursor holds the rows (one or more) returned by a SQL statement. The set of rows the cursor holds is ...
Hi and thanks for APSW, I would need to be able to determine the number of columns which a SQL select statement would return, even when the number of returned rows is empty. Calling cursor.description ...
A Cursor allow us to retrieve data from a result set in single means row by row. Cursor are required when we need to update records in a database table one row at a time. A static cursor populates the ...
It is possible to update and delete the row referenced by a cursor. For a row to be updatable, the query corresponding to the cursor must not be read-only. (For a description of what makes a query ...
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