Skip to main content

Posts

Showing posts from February, 2014

PL/SQL Connect By Prior

select * from test_table_name connect by prior id=root_id start with root_id=211; declare   cursor c_birim   is   select *   from test_table_name   connect by prior id=root_id   start with root_id=211; begin   for r_birim in c_birim loop       update test_table       set tur_id=1       where id=r_birim.id;     end loop; end;

PL/SQL Not Exists

    select     user.id, user.name      from     schema.table_users user    where not exists ( select dept.kullanici_id                   from schema.table_departments dept                   where dept.user_id=user.id)  order by user.id;

PL/SQL Adding Columns to a Table without Loosing any Data

-- Renaming the last 4 column names alter table TEST_TABLE_NAME rename column KAYIT_KULLANICI_ID to XKAYIT_KULLANICI_ID; alter table TEST_TABLE_NAME rename column KAYIT_TARIHI to XKAYIT_TARIHI; alter table TEST_TABLE_NAME rename column GUNCELLEME_KULLANICI_ID to XGUNCELLEME_KULLANICI_ID; alter table TEST_TABLE_NAME rename column GUNCELLEME_TARIHI to XGUNCELLEME_TARIHI; alter table TEST_TABLE_NAME drop CONSTRAINT "FK_TEST_TABLE_GNC_KULL_ID"; alter table TEST_TABLE_NAME drop CONSTRAINT "FK_TEST_TABLE_KYT_KULL_ID"; -- Adding new columns alter table TEST_TABLE_NAME add "SICIL_NO"    VARCHAR2(20 BYTE); alter table TEST_TABLE_NAME add "ACIKLAMA" VARCHAR2(200 BYTE); -- Adding new "last 4 fields" which were renamed at the beginning alter table TEST_TABLE_NAME add "KAYIT_KULLANICI_ID" NUMBER(18,0); alter table TEST_TABLE_NAME add "KAYIT_TARIHI" DATE; alter table TEST_TABLE...