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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.
Database designers that use a surrogate key as the primary key for every table will run into the occasional scenario where they need to automatically retrieve the database-generated primary key from an SQL INSERT statement for use in other SQL statements. Most systems do not allow SQL INSERT statements to return row data. Therefore, it becomes ...
Mail merge consists of combining mail and letters and pre-addressed envelopes or mailing labels for mass mailings from a form letter. [1]This feature is usually employed in a word processing document which contains fixed text (which is the same in each output document) and variables (which act as placeholders that are replaced by text from the data source word to word).
Quick tip: In the "Start Mail Merge" drop-down, you can also select "Step-by-Step Mail Merge Wizard" at the bottom of the list for a more guided run-through of the mail merge process. 9. Click ...
Microsoft Excel is a spreadsheet editor developed by Microsoft for Windows, macOS, Android, iOS and iPadOS.It features calculation or computation capabilities, graphing tools, pivot tables, and a macro programming language called Visual Basic for Applications (VBA).
The Falcons had the chance to go up 21-7 instead of 17-7 at halftime, though Morris defended his strategy as a way to not leave Jayden Daniels and Co. the chance to get the ball back: "Took the ...
The average house price is $4.5 million, according to Realtor.com data. The fire started on Tuesday in the Pacific Palisades before spreading west toward the Malibu stretch of the Pacific Coast ...
The Inner Join can only be safely used in a database that enforces referential integrity or where the join columns are guaranteed not to be NULL. Many transaction processing relational databases rely on atomicity, consistency, isolation, durability (ACID) data update standards to ensure data integrity, making inner joins an appropriate choice ...