SUBSTR « Character String Functions « Oracle PL/SQL Tutorial

Oracle PL/SQL Tutorial

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Oracle PL/SQL Tutorial » Character String Functions » SUBSTR

11. 18. SUBSTR
	11. 18. 1.	The SUBSTR Function
	11. 18. 2.	substr(,) and substr(,,)
	11. 18. 3.	SUBSTR(x, start [, length]) returns a substring of x that begins at the position specified by start.
	11. 18. 4.	Substr retrieves a portion of the string
	11. 18. 5.	Retrieval begins at position 5 and again goes for 12 characters
	11. 18. 6.	A retrieval with no third argument: it starts at begin and retrieves the rest of the string
	11. 18. 7.	If begin is negative, then retrieval occurs from the right-hand side of original string
	11. 18. 8.	SUBSTR and INSTR used together
	11. 18. 9.	Combine SUBSTR and INSTR to deal with a table column
	11. 18. 10.	Combine DECODE and SUBSTR together
	11. 18. 11.	Example SELECT output using SUBSTR().
	11. 18. 12.	substr birthday
	11. 18. 13.	Compare substring in where statement
	11. 18. 14.	Manipulating Strings: SUBSTR and concatenation
	11. 18. 15.	substr(date value,8)+16

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