Internal components can be either scalar or composite.You can use scalar components wherever you can use scalar variables. CURRENT_YEAR_ID = ( SELECT CURRENT_YEAR_ID FROM CURRENT_YEAR WHERE DEFAULT_YEAR = 1 ); UPDATE CONTACT (SELECT PERSON. When you want to update multiple columns at once, you list all of the columns to be updated first, followed by all of the values to use (in the same order that the columns are listed).
It can be hard, as an Oracle Database administrator, to expand your PL/SQL skills due to a lack of good examples, not to mention that lines upon lines of syntax definitions can be somewhat of a turn-off.Oracle does not support loose index scan on composite indexes like My SQL.It does support a similar solution, so we cannot apply a multirecord or a multicolumn query to each result of the rowset.You can understand the examples in this chapter without completely understanding PL/SQL procedures and functions, which are explained in Chapter 8, "PL/SQL Subprograms". It is available only in the block, and is stored in the database only if the block is in a standalone stored or package subprogram.(Standalone stored and package subprograms are explained in "Nested, Package, and Standalone Stored Subprograms".) A collection type defined in a package specification is a .