SQL Insert
 

Oracle SQL 

SQL Introduction    SQL Introduction 

SQL Insert    SQL Insert

SQL Update    SQL Update

SQL Delete    SQL Delete

SQL Joins   SQL Joins 

SQL Subqueries    SQL Subqueries

SQL Views    SQL Views

Oracle PL/SQL

PL/SQL Introduction    PL/SQL Introduction

PL/SQL Cursors    PL/SQL Cursors

PL/SQL Triggers    PL/SQL Triggers

PL/SQL Interview Questions    PL/SQL Questions

SQL – Insert

Inserting a new row into the dept table

insert into dept (deptno, dname, loc)

          values (10,'Apple','Boston')

You can omit the column list in the insert statement but then you have to enter those in the same order as they appear in the table and you have o include all the columns in the values.

The following example illustrates the use of the "default" keyword while inserting the records.

insert into table_name values(default);

or

insert into table_name(column1,column2..) values(default)

How to create a new table having the same structure as some other table?

create table new_table
as

select * from old_table

How to insert data into multiple tables?

There are two terms used INSERT ALL AND INSERT FIRST

EXAMPLE:

Suppose there are three tables emp,emp_1 and emp_2 with the same sructure  and columns.

insert all

               when sal in (800,1600) then

                 into emp (empno,ename,job) values (empno,ename,job)

               when sal = 3200 then

                 into emp_1 (empno,ename,job) values (empno,ename,job)

               else

                 into emp_2 (empno,ename,job) values (empno,ename,job)

               select empno,ename,job

                 from emp

INSERT FIRST will breakout as soon as it sees a condition that evaluates to true.

INSERT ALL will evaluate al the conditions even if the previous condition evluates to true.