char type and varchar2 type : CHAR « Data Type « Oracle PL / SQL






  1. Oracle PL / SQL
  2. Data Type
  3. CHAR

char type and varchar2 type

    


SQL> create table myTable(
  2      codeValue   char(2) not null,
  3      address     varchar2(30)
  4  );

Table created.

SQL>
SQL> desc myTable;
 Name                      Null?    Type
 ------------------------- -------- ------------------
 CODEVALUE                 NOT NULL CHAR(2)
 ADDRESS                            VARCHAR2(30)

SQL>
SQL> insert into myTable values ('AZ','Arizona');

1 row created.

SQL> insert into myTable (codeValue, address) values ('NJ','New Jersey');

1 row created.

SQL> insert into myTable (codeValue, address) values ('CA','California');

1 row created.

SQL> insert into myTable (codeValue, address) values ('TX','Texas');

1 row created.

SQL> insert into myTable (codeValue, address) values ('FL','Florida');

1 row created.

SQL> insert into myTable (codeValue, address) values ('MN','Maine');

1 row created.

SQL>
SQL> select * from myTable;



CO  ADDRESS
--  ------------------------------
AZ  Arizona
NJ  New Jersey
CA  California
TX  Texas
FL  Florida
MN  Maine

6 rows selected.

SQL>
SQL> select address from myTable;



ADDRESS
------------------------------
Arizona
New Jersey
California
Texas
Florida
Maine

6 rows selected.

SQL>
SQL>
SQL> drop table myTable;

Table dropped.

SQL>








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