A database contains of many tables which has data stored in an order. To add up the rows, the user needs to use insert statement.
insert into table_name(column_list) values(values_list)
For better understanding, an example is given below.
A table named student must have values inserted into it. It has to be done as follows:
insert into student (varchar2 name(20), int rollnumber, varchar2 course(50)); values('Riya', 111, 'Computer Science');
1 row(s) inserted
To check whether the value is actually inserted, the query must be given as follows:
select * from student;
insert multiple rows :
A table can store upto 1000 rows in one insert statement. If a user want to insert multiple rows at a time, the following syntax has to written.
insert into table_name(column_list) values(value_list1) values(values_list2) . . . . values(values_listn)
If a user wants to insert more than 1000 rows, multiple insert statements, bulk insert or derived table must be used.
Consider a table student. If a user has to enter the data of 6 students at a time, the query must be given as follows-
insert into student(int rollnumber, varchar2(30) name, varchar2(20) course); values(111, 'Riya', 'CSE'); values(112, 'Apoorva', 'ECE'); values(113, 'Mina', 'Mech'); values(114, 'Rita', 'Biotechnology); values(115, 'Veena', 'Chemical'); values(116, 'Deepa', 'EEE');
6 row(s) inserted
To check whether the values are present in the table, the query must be given as follows:
select * from student;
The insert multiple rows statement was only available in the year 2008 and later on.
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