INSTR returns a location within the string where search pattern begins. : INSTR « Character String Functions « Oracle PL/SQL Tutorial

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Oracle PL/SQL Tutorial » Character String Functions » INSTR

11. 6. 4. INSTR returns a location within the string where search pattern begins.


SQL>

SQL> SELECT INSTR('This is a test','is')FROM dual

  2  /



INSTR('THISISATEST','IS')

-------------------------

                        3



SQL>

11. 6. INSTR
	11. 6. 1.	INSTR(x, find_string [, start] [, occurrence]) searchs for find_string in x
	11. 6. 2.	INSTR ('in-string') is a function used to find patterns in strings
	11. 6. 3.	Display the position where the second occurrence of e occurs in employee's first name
	11. 6. 4.	INSTR returns a location within the string where search pattern begins.
	11. 6. 5.	Look for the second occurrence of 'is'
	11. 6. 6.	If search pattern is not in the string, the INSTR function returns 0
	11. 6. 7.	Using SUBSTR and INSTR together
	11. 6. 8.	If the INSTR pattern is not found, then the entire string would be returned
	11. 6. 9.	Use dates in INSTR functions
	11. 6. 10.	instr and substr

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