SQL is a standard programming language for accessing databases.
The SQL language is used to access and manipulate data in any database in the market, such as databases to MySQL, Oracle, DB2, SQL Server, Access.
SQL is a structured language and an ANSI standard for accessing and manipulating data from any database.
1.This quick reference with simple examples.
2. Syntax and definitions made it easy to understand and it is sub divided into three levels.
a. BASIC ( contains introduction, syntax and common keywords like select,delete,update etc.)
b. ADVANCE ( contains keywords like join,drop etc.)
c. FUNCTIONS ( contains Functions like avg,sum,count etc.)
3. Example of different database like sql, oracle, MySQL....
4. Read offline no need of internet
5. Totally free.
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