Tem
27
2015

SUBSTR ve INSTR Fonksiyonlarının Kullanımı

1
SELECT SUBSTR (‘Mert AĞBABA’, 1, 4) FROM DUAL;
  
2
SELECT SUBSTR (‘Mert AĞBABA’, 3, 4) FROM DUAL;

3
SELECT SUBSTR (‘Mert AĞBABA’,-4) FROM DUAL;

4
SELECT SUBSTR (‘Mert AĞBABA’,4) FROM DUAL;

5
SELECT SUBSTR (‘Mert AĞBABA’,-4,2) FROM DUAL;

6
SELECT INSTR (‘Mert AĞBABA’,’A’,1,1) FROM DUAL;


7
SELECT INSTR (‘Mert AĞBABA’,’A’,1,2) FROM DUAL;


8
SELECT INSTR (‘Mert AĞBABA’,’BABA’,1,1) FROM DUAL;

9
SELECT INSTR (‘Mert AĞBABA’,’A’,-1,1) FROM DUAL;

10
SELECT INSTR (‘Mert AĞBABA’,’A’,-1,2) FROM DUAL;

11
SELECT SUBSTR(‘Mert AĞBABA’, 1 ,INSTR(‘Mert AĞBABA’, ‘ ‘, 1, 1)-1)FROM DUAL;

12
SELECT SUBSTR(‘Mert AĞBABA Orasistem’, INSTR(‘Mert AĞBABA Orasistem’,’ ‘, 1, 1)+1,INSTR(‘Mert AĞBABA Orasistem’,’ ‘, 1, 2)-INSTR(‘Mert AĞBABA Orasistem’,’ ‘, 1, 1)-1) FROM DUAl;

13
SELECT SUBSTR(‘Mert AĞBABA’, INSTR(‘Mert AĞBABA’,’ ‘, -1, 1)+1)FROM DUAL;

Mert Ağbaba


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