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A relational database management system uses SQL MERGE (also called upsert) statements to INSERT new records or UPDATE or DELETE existing records depending on whether condition matches. It was officially introduced in the SQL:2003 standard, and expanded [ citation needed ] in the SQL:2008 standard.
Using an INSERT statement with RETURNING clause for PostgreSQL (since 8.2). The returned list is identical to the result of a INSERT. Firebird has the same syntax in Data Modification Language statements (DSQL); the statement may add at most one row. [2] In stored procedures, triggers and execution blocks (PSQL) the aforementioned Oracle syntax ...
Merge (SQL), a statement in SQL; Merge algorithm, an algorithm for combining two or more sorted lists into a single sorted one; Mail merge, the production of multiple documents from a single template form and a structured data source
A Venn diagram representing the full join SQL statement between tables A and B.. A join clause in the Structured Query Language combines columns from one or more tables into a new table.
Walmart, the world's biggest retailer, has slashed Christmas imports deeply, shipping at least 340,000 kilos of products described as "Christmas" goods into the U.S. in the 12 months ending Sept ...
The previous owners attempted to fashion the shelter into a Tier IV data center — the modern classification for the most secure, fault-tolerant systems — which wasn't far off from the shelter ...
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The benefits of chia seeds come from protein, fiber, antioxidants and omega-3 fatty acids. A dietitian explains how many chia seeds to eat in a day and risks.