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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
MySQL Workbench is a visual database design tool that integrates SQL development, administration, database design, creation and maintenance into a single integrated ...
This is a comparison between notable database engines for the MySQL database management system (DBMS). A database engine (or "storage engine") is the underlying software component that a DBMS uses to create, read, update and delete (CRUD) data from a database.
However, delete and update operations are more problematic: deletes must leave an empty space, or the rows' offsets would change; the same goes for updates, as the length of the rows becomes shorter; if the update makes the row longer, the row is fragmented. To defragment rows and claim empty space, the OPTIMIZE TABLE command must be executed.
Kam Jones had 20 points, 10 assists and six rebounds as No. 10 Marquette remained unbeaten by breezing to a 94-62 victory over Western Carolina on Saturday. Marquette (8-0) continued its fastest ...
The latest injury updates on Cowboys QB Dak Prescott, who is missing just his second Thanksgiving start because of a hamstring problem.
MySQL Workbench – official (yet 3rd-party developed) integrated environment for MySQL. It was developed by MySQL AB, and enables users to graphically administer MySQL databases and visually design database structures. Adminer – free MySQL front end capable of managing multiple databases, with many CSS skins available. It is a light-weight ...
The Federal Aviation Administration is reporting a record number of flights for Thanksgiving week this year. There were over 232,000 flights across the U.S. between Nov. 24 and 28, the FAA said ...