Notes of SQL
Dear Friends, SQL is most common used language in Oracle application. Lets read about it SQL stands for Structured Query Language and is the standard relational language that is supported by just about every database product. All database professionals should know how to write, troubleshoot, and optimize SQL. SQL: SELECT STATEMENT This SQL tutorial explains how to use the SQL SELECT statement with syntax, examples, and practice exercises. DESCRIPTION The SQL SELECT statement is used to retrieve records from one or more tables in your SQL database. SYNTAX The syntax for the SQL SELECT statement is: SELECT expressions FROM tables WHERE conditions; Parameters or Arguments expressions The columns or calculations that you wish to retrieve. tables The tables that you wish to retrieve records from. There must be at least one table listed in the FROM clause. conditions The conditions that must be met for the records to b...

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