Use the MERGE statement to select rows from one or more sources for update or insertion into a table or view. You can specify conditions to determine whether to update or insert into the …

This tutorial shows you step by step how to use the Oracle MERGE statement to update or insert data based on a specified condition.

The MERGE statement was introduced in Oracle 9i to conditionally insert or update data depending on its presence, a process also known as an "upsert". The MERGE statement …

The MERGE statement is used to merge two or more rows into one row. This is useful when you want to update or insert data into a table, and the data already exists in another table.

Apr 5, 2023 · @Lavanya: unfortunately I don't think that Oracle supports the RETURNING clause for MERGE, so you would probably need an additional query to fetch the new customer serial.

Jan 31, 2025 · This article explores four key reasons why you should use the Oracle MERGE statement, explains its syntax and key clauses, and provides practical examples to help you …

Oracle uses a unique MERGE INTO format—differing from other databases. This structure allows you to synchronize two tables by matching and then updating or inserting records in one …

MERGE in Oracle combines the power of INSERT and UPDATE into one power-packed statement

Nov 6, 2025 · MERGE gives you a clear, declarative, and efficient way to upsert data in Oracle. With the right keys, indexes, and a tidy source, it simplifies your ETL/ELT flows, reduces code, …

Use the MERGE statement to select rows from one or more sources for update or insertion into one or more tables. You can specify conditions to determine whether to update or insert into …