Example SELECT output using SUBSTR(). : 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. 11. Example SELECT output using SUBSTR().
SQL>
SQL> select substr(owner,1,10) owner,
  2      substr(object_name,1,10) object_name,
  3      substr(object_type, 1,10) object_type,
  4      to_char(last_ddl_time,'dd-mon-yyyy hh24:mi') last_ddl_time
  5  from dba_objects
  6  where owner='SYSTEM' and rownum < 50;

OWNER      OBJECT_NAM OBJECT_TYP LAST_DDL_TIME
---------- ---------- ---------- -----------------
SYSTEM     SYSCATALOG SYNONYM    07-feb-2006 22:12
SYSTEM     CATALOG    SYNONYM    07-feb-2006 22:12
SYSTEM     TAB        SYNONYM    07-feb-2006 22:12
SYSTEM     COL        SYNONYM    07-feb-2006 22:12
SYSTEM     TABQUOTAS  SYNONYM    07-feb-2006 22:12
SYSTEM     SYSFILES   SYNONYM    07-feb-2006 22:12
SYSTEM     PUBLICSYN  SYNONYM    07-feb-2006 22:12
SYSTEM     MVIEW$_ADV TABLE      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV INDEX      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV INDEX      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV TABLE      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV INDEX      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV TABLE      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV INDEX      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV TABLE      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV INDEX      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV TABLE      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV INDEX      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV TABLE      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV INDEX      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV TABLE      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV INDEX      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV TABLE      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV TABLE      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV INDEX      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV TABLE      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV INDEX      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV TABLE      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV INDEX      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV TABLE      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV INDEX      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV TABLE      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV INDEX      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV TABLE      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV INDEX      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV TABLE      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV INDEX      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV TABLE      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV INDEX      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV TABLE      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV TABLE      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV INDEX      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV TABLE      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV INDEX      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV TABLE      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV INDEX      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV TABLE      07-feb-2006 22:13
SYSTEM     MVIEW$_ADV SEQUENCE   07-feb-2006 22:13
SYSTEM     MVIEW$_ADV SEQUENCE   07-feb-2006 22:13

49 rows selected.

SQL>
SQL>
SQL>
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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