Specifying a Null Value for a Column : Insert « Insert Update Delete « Oracle PL/SQL Tutorial





SQL>
SQL>
SQL> -- create demo table
SQL> create table Employee(
  2    ID                 VARCHAR2(4 BYTE)         NOT NULL,
  3    First_Name         VARCHAR2(10 BYTE),
  4    Last_Name          VARCHAR2(10 BYTE),
  5    Start_Date         DATE,
  6    End_Date           DATE,
  7    Salary             Number(8,2),
  8    City               VARCHAR2(10 BYTE),
  9    Description        VARCHAR2(15 BYTE)
 10  )
 11  /

Table created.

SQL>
SQL> -- prepare data
SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary,  City,       Description)
  2               values ('01','Jason',    'Martin',  to_date('19960725','YYYYMMDD'), to_date('20060725','YYYYMMDD'), 1234.56, 'Toronto',  'Programmer')
  3  /

1 row created.

SQL> insert into Employee(ID,  First_Name, Last_Name, Start_Date,                     End_Date,                       Salary, City,        Description)
  2                values('02',NULL,       'Cat',     to_date('19960917','YYYYMMDD'), to_date('20020415','YYYYMMDD'), 1232.78,'Vancouver', 'Tester')
  3  /

1 row created.

SQL>
SQL>
SQL>
SQL> -- display data in the table
SQL> select * from Employee
  2  /

ID   FIRST_NAME LAST_NAME  START_DAT END_DATE      SALARY CITY       DESCRIPTION
---- ---------- ---------- --------- --------- ---------- ---------- ---------------
01   Jason      Martin     25-JUL-96 25-JUL-06    1234.56 Toronto    Programmer
02              Cat        17-SEP-96 15-APR-02    1232.78 Vancouver  Tester

SQL>
SQL>
SQL>
SQL>
SQL>
SQL> -- clean the table
SQL> drop table Employee
  2  /

Table dropped.

SQL>










4.1.Insert
4.1.1.Adding Rows Using the INSERT Statement
4.1.2.Omitting the Column List
4.1.3.Insert value for specific columns
4.1.4.Specifying a Null Value for a Column
4.1.5.Including Single and Double Quotes in a Column Value
4.1.6.Insert double quote
4.1.7.Use trunc in insert statement
4.1.8.Combine three tables with 'insert into statement'
4.1.9.Insert default value
4.1.10.Truncate sysdate in insert statement
4.1.11.Adding Multiple Rows to a Table
4.1.12.Conditional INSERT Statement
4.1.13.to_date() and insert statement
4.1.14.To insert records into a table using a subquery: