Introduction - If you have any usage issues, please Google them yourself
SQL syntax rules and the actual development, and SQL in MySQL, MS SQL Server, Oracle and DB2 difference. Programmers SQL Golden "is divided into three parts: Part 1 based articles, mainly on the database to add, delete, change, check SQL support, given these SQL Applications Part 2 Advanced articles, explain the function, sub-queries, table joins, senior technical SQL syntax differences in different DBMS, SQL tuning, NULL values handling affairs, windowing function part 3 for the case papers, the knowledge of the first two parts the integrated use of.