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## SQL As Understood By SQLite

### UPDATE

sql-statement ::= | UPDATE [ OR conflict-algorithm ] [database-name .] table-name SET assignment [, assignment]* [WHERE expr]
assignment ::= | column-name = expr

The UPDATE statement is used to change the value of columns in selected rows of a table. Each assignment in an UPDATE specifies a column name to the left of the equals sign and an arbitrary expression to the right. The expressions may use the values of other columns. All expressions are evaluated before any assignments are made. A WHERE clause can be used to restrict which rows are updated.

The optional conflict-clause allows the specification of an alternative constraint conflict resolution algorithm to use during this one command. See the section titled ON CONFLICT for additional information.

This page last modified 2007/11/21 13:59:26 UTC