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DELETE requires a shared table lock; Triggers fire; DELETE can be used in the case of: database link; DELETE returns the number of records deleted; Transaction log - DELETE needs to read records, check constraints, update block, update indexes, and generate redo / undo. All of this takes time, hence it takes time much longer than with TRUNCATE
Row level triggers would execute once for each row that is affected by the UPDATE. It is important to keep in mind if no rows are affected by the UPDATE command, the trigger will not execute any code within the trigger. Statement level triggers will be called once regardless of how many rows are affected by the UPDATE. Here it is important to ...
Click on "copy" or "cut" as needed from the edit menu of your browser. "Delete" will not work for multiple rows and columns. Click on the top left corner cell of the area you want to paste into in a table. Then click "paste" from the edit menu of your browser. It can take from a few seconds to up to a minute for very large areas.
In computer programming, create, read, update, and delete (CRUD) are the four basic operations (actions) of persistent storage. [1] CRUD is also sometimes used to describe user interface conventions that facilitate viewing, searching, and changing information using computer-based forms and reports .
The National Hurricane Center said Wednesday it is tracking a system in the Caribbean that could soon strengthen into Hurricane Sara.
Over the years, multiple investigators have worked on the case. That all came to an end this Wednesday. “I can’t imagine what it’s like for them,” Corey said. “That whole family has just ...
NEW YORK (AP) — Spirit Airlines, the largest budget carrier in the U.S., filed for Chapter 11 bankruptcy protection Monday. The airline said customers should not see any disruption to their ...
A database engine (or storage engine) is the underlying software component that a database management system (DBMS) uses to create, read, update and delete (CRUD) data from a database. Most database management systems include their own application programming interface (API) that allows the user to interact with their underlying engine without ...