1、培訓過程中，如有部分內容理解不透或消化不好，可免費在以后培訓班中重聽；
        2、培訓結束后,授課老師留給學員聯系方式,保障培訓效果,免費提供課后技術支持。
        3、培訓合格學員可享受免費推薦就業機會。

• 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