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UPDATE Statement

The statement changes the values of specified columns in one or more rows in a table or view. For a full description of the statement, see Oracle Database SQL Reference.

Syntax

Description of the illustration update_statement.gif

Keyword and Parameter Description

alias

Another (usually short) name for the referenced table or view, typically used in the clause.

column_name

The column (or one of the columns) to be updated.

It must be the name of a column in the referenced table or view.

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A column name cannot be repeated in the list. Column names need not appear in the statement in the same order that they appear in the table or view.

returning_clause

Returns values from updated rows, eliminating the need to the rows afterward.

You can retrieve the column values into variables or host variables, or into collections or host arrays. You cannot use the clause for remote or parallel updates. If the statement does not affect any rows, the values of the variables specified in the clause are undefined.

For the syntax of , see "DELETE Statement".

SET

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