Last updated
Kurskode
sqlmysqladv
Varighet
7 timer (vanligvis 1 dag inkuldert pauser)
Krav
Good SQL knowledge.
Oversikt
Dette kurset er laget for folk som allerede er kjent med SQL . Kurset introduserer deg hemmeligheter som er felles for alle SQL databaser, så vel som My SQL spesifikke syntaks, funksjoner og funksjoner.
Machine Translated
Kursplan
DQL (Data Query Language)
- Correlation in FROM, WHERE, SELECT and HAVING clauses
- Correlation and performance
- Using CASE, IF, COALESCE functions
- Using variables
- Casting and converting
- Dealing with NULL, NULL-safe operators
- Using regular expression with REGEXP operator
- Useful MySQL specific group by functions (GROUP_CONCAT, etc.)
- GROUP BY WITH ROLLUP
- EXISTS, ALL, ANY
- Multitable OUTER JOIN
- Rewriting subqueries as joins
DML (Data Modification Language)
- Multi-row inserts
- INSERT by SELECT
- Using subqueries in DML statements
- Using variables in DML queries
- Locking tables and rows
- Updating data in many tables
- IGNORE clause
- REPLACE clause
- DELETE versus TRUNCATE
DDL (Data Definition Language)
- Creating tables with select
- Temporary tables
Stored Procedures
- Short introduction to MySQL stored procedures
