-------------- SQL STATEMENTS ----------------------
Data Retrieval
Select
Data Manipulation Language (DML)
Insert, Update, Delete, Merge
Data Definition Language (DDL)
Create, Alter, Drop, Truncate, Rename
Data Control Language (DCL)
Grant, Revoke
Transaction Control
Commit, Rollback, Savepoint
Data Retrieval (Select Statement) -- Capabilities
1. Projection : Select All or Particular Columns From the table
2. Selection : Select All or Particular Columns From the table including Where Clause
3. Joining : Retrieve Data from more than One Table
To Retrieve all the Data from the Table
Select * from Emp;
To Retrieve particular Data from the Table
Select empno, ename, sal from Emp;
To Retrieve particular Data from the Table including Where Clause
Select empno, ename, sal from Emp where deptno = 10;
You can Edit your previous queries through Oracle SQL* Plus, there you have to use Notepad Functionality for it, For this you have to type.
ED
No comments:
Post a Comment