The MERGE statement was introduced in Oracle 9i to conditionally insert or update. Database SQL Language Reference. Use the MERGE statement to select rows from one or more sources for update or insertion into a table or view.
Instrukcja ta umożliwia nam scalenie danych z dwóch tabel,czyli np zamianę części danych w. Note: Primarily of value when moving large amounts of data in data warehouse situations.

Not able to merge records in Oracle database using. Więcej wyników z stackoverflow. MERGE in Oracle combines the power of INSERT and UPDATE into one. The Oracle merge statement combines an insert and update which is why.
Also, Adrian Billington notes that a custom SQL procedure is faster than the merge. Syntaxe standard : SQL Server, Oracle , DB Teradata et EXASOL . I use this to create idempotent change scripts which are then versioned and applied by the DBA.
Oracle SQL to generate MERGE statement scaffolds. Classificazioni delle istruzioni SQL : DDL, DML, DQL, . Please read these articles. Using MERGE in SQL Server to insert, update and delete at the same time MERGE Thanks.