Use SUBSTR to decode a column : SUBSTR « Char Functions « Oracle PL / SQL

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Oracle PL / SQL » Char Functions » SUBSTR 
Use SUBSTR to decode a column
  
SQL>
SQL> CREATE TABLE old_item (
  2       item_id   CHAR(20),
  3       item_desc CHAR(25)
  4       );


SQL>
SQL> INSERT INTO old_item VALUES('LA-101', 'Can, Small');

row created.

SQL> INSERT INTO old_item VALUES('LA-102', 'Can, Large');

row created.

SQL> INSERT INTO old_item VALUES('LA-103', 'Bottle, Small');

row created.

SQL> INSERT INTO old_item VALUES('LA-104', 'Bottle, Large');

row created.

SQL> INSERT INTO old_item VALUES('NY-101', 'Box, Small');

row created.

SQL> INSERT INTO old_item VALUES('NY-102', 'Box, Large');

row created.

SQL> INSERT INTO old_item VALUES('NY-103', 'Shipping Carton, Small');

row created.

SQL> INSERT INTO old_item VALUES('NY-104', 'Shipping Carton, Large');

row created.

SQL>
SQL> SELECT SUBSTR(item_id, 12MFGR_LOCATION,
  2         SUBSTR(item_id, 43ITEM_NUMBER,
  3         item_desc
  4  FROM   old_item;

MF ITE ITEM_DESC
-- --- -------------------------
LA 101 Can, Small
LA 102 Can, Large
LA 103 Bottle, Small
LA 104 Bottle, Large
NY 101 Box, Small
NY 102 Box, Large
NY 103 Shipping Carton, Small
NY 104 Shipping Carton, Large
LA 101 Can, Small
LA 102 Can, Large
LA 103 Bottle, Small

MF ITE ITEM_DESC
-- --- -------------------------
LA 104 Bottle, Large
NY 101 Box, Small
NY 102 Box, Large
NY 103 Shipping Carton, Small
NY 104 Shipping Carton, Large
LA 101 Can, Small
LA 102 Can, Large
LA 103 Bottle, Small
LA 104 Bottle, Large
NY 101 Box, Small
NY 102 Box, Large

MF ITE ITEM_DESC
-- --- -------------------------
NY 103 Shipping Carton, Small
NY 104 Shipping Carton, Large
LA 101 Can, Small
LA 102 Can, Large
LA 103 Bottle, Small
LA 104 Bottle, Large
NY 101 Box, Small
NY 102 Box, Large
NY 103 Shipping Carton, Small
NY 104 Shipping Carton, Large

32 rows selected.

SQL>
SQL> drop table OLD_ITEM;

Table dropped.

SQL>
SQL>

   
  
Related examples in the same category
1. SUBSTR() returns a portion of string, beginning at numeric_position up to a specified substring_length characters long.
2. Substr: retrieve a portion of the string
3. SUBSTR: get the sub-string
4. Simple demo for SUBSTR function
5. SUBSTR: from the right-hand side of original string
6. SUBSTR and INSTR are used together
7. select substr( '1234567890', 5 )
8. use substr in IF statement
9. substr(date value,8)+16
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