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Snippet Name: Function For Number Handling

Description: This 'AndNotNum' Function is intended to check a string or number to see if it contains one nested element but does not contain a second nested element.

Also see:
» FUNCTIONS: Deterministic
» FUNCTIONS: Nested Functions
» FUNCTIONS: IF statement
» FUNCTIONS: date/time
» FUNCTIONS: Sample functions
» FUNCTIONS: drop
» FUNCTIONS: Recompile
» FUNCTIONS: DEBUG mode
» FUNCTIONS: IN OUT parameter
» FUNCTIONS: with output parameters
» FUNCTIONS: with parameters
» FUNCTIONS: without parameters
» FUNCTIONS: Create function
» FUNCTIONS: special restrictions
» FUNCTIONS: System Privileges
» IN Function
» Built-In Functions: CASE
» Built-In Functions: DECODE
» SUBST and INSTR together
» INSTR (InString)
» SUBSTR (SubString)
» String Functions: REVERSE
» String Functions: LENGTH
» String Functions: INSTR
» String Functions: CONCAT
» String Functions: CHAR
» String Functions: INITCAP
» String Functions: LOWER
» String Functions: UPPER
» Date Functions: NUMTOYMINTERVAL

Comment: (none)

Language: PL/SQL
Highlight Mode: PLSQL
Last Modified: March 01st, 2009

CREATE OR REPLACE FUNCTION  AndNotNum (
evalnum NUMBER,
num1in NUMBER,
num2in NUMBER)
RETURN NUMBER IS
 
evalstr VARCHAR2(38);
num1str VARCHAR2(38);
num2str VARCHAR2(38);
 
NoGood  EXCEPTION;
 
BEGIN
   evalstr := TO_CHAR(evalnum);
   num1str := TO_CHAR(num1in);
   num2str := TO_CHAR(num2in);
 
   IF INSTR(evalstr, num1str, 1, 1) = 0 THEN
      RAISE NoGood;
   END IF;
 
   IF INSTR(evalstr, num2str, 1, 1) > 0 THEN
      RAISE NoGood;
   END IF;
 
   RETURN 1;
 
EXCEPTION
   WHEN NoGood THEN
      RETURN 0;
 
END AndNotNum;
/


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