Use case when statement with to_char() like : Case Query « Select Query « Oracle PL / SQL






  1. Oracle PL / SQL
  2. Select Query
  3. Case Query

Use case when statement with to_char() like

   

SQL>
SQL> create table emp(
  2            emp_no                 integer         primary key
  3           ,lastname               varchar2(20)    not null
  4           ,firstname              varchar2(15)    not null
  5           ,midinit                varchar2(1)
  6           ,street                 varchar2(30)
  7           ,city                   varchar2(20)
  8           ,state                  varchar2(2)
  9           ,zip                    varchar2(5)
 10           ,shortZipCode           varchar2(4)
 11           ,area_code              varchar2(3)
 12           ,phone                  varchar2(8)
 13           ,salary                 number(5,2)
 14            ,birthdate              date
 15           ,startDate              date
 16           ,title                  varchar2(20)
 17           ,dept_no                integer
 18           ,mgr                    integer
 19           ,region                 number
 20           ,division               number
 21           ,total_sales            number
 22    );

Table created.

SQL>
SQL>
SQL>
SQL>
SQL> -- emp Table Inserts:
SQL> insert into emp(emp_no, lastname, firstname, midinit, street, city, state, zip,shortZipCode, area_code, phone, birthdate, title)values
  2                       (1,'Z','Joy','R','1 Ave','New York','NY','12122','2333','212','200-1111','12-nov-1976','President');

1 row created.

SQL>
SQL>
SQL>
SQL>
SQL> create table avg_sal
  2   as select avg(salary) AS avg_Sal from emp;

Table created.

SQL>
SQL> 
SQL> select
  2   case when salary between 6 and 8 then '6-8'
  3        when salary in (9,10)       then '9-10'
  4        when exists (select null from avg_sal where avg_sal = salary)
  5                                    then 'EXISTS'
  6        when to_char(salary) like '2%' then 'Like2'
  7        when salary is null then 'Null'
  8        else 'ELSE Empno: '|| emp_no
  9        end
 10        AS case_test
 11   from emp
 12   /

CASE_TEST
----------------------------------------------------
Null

SQL>
SQL>
SQL> drop table avg_sal;

Table dropped.

SQL>
SQL> drop table emp;

Table dropped.

SQL>
SQL>
SQL>








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