How to find the Column data type changes in table

Question

Hi All,
I need to find out the column data type changes where made recently in table .
How do i check past changes in column data type. Any data dictionary are there to find out the data type changes in the column .
Thanks in advance..

Answer 1

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You have the answer on hand (user_arguments / all_arguments)!
SQL> desc user_arguments
Name                                      Null?    Typ
OBJECT_NAME      VARCHAR2(30)
PACKAGE_NAME     VARCHAR2(30)
OBJECT_ID     NOT NULL NUMBER
OVERLOAD       VARCHAR2(40)
ARGUMENT_NAME  VARCHAR2(30)
POSITION       NOT NULL NUMBER
SEQUENCE       NOT NULL NUMBER
DATA_LEVEL     NOT NULL NUMBER
DATA_TYPE      VARCHAR2(30) --> Data Type
DEFAULT_VALUE  LONG
DEFAULT_LENGTH NUMBER
IN_OUT         VARCHAR2(9) -->Argument direction (IN,OUT,or IN/OUT)
DATA_LENGTH    NUMBER
DATA_PRECISION NUMBER
DATA_SCALE     NUMBER
RADIX          NUMBER
CHARACTER_SET_NAME VARCHAR2(44)
TYPE_OWNER         VARCHAR2(30)
TYPE_NAME          VARCHAR2(30)
TYPE_SUBNAME       VARCHAR2(30)
TYPE_LINK          VARCHAR2(128)
PLS_TYPE           VARCHAR2(30)
CHAR_LENGTH        NUMBER
CHAR_USED          VARCHAR2(1)
Look for Data_Type where IN_OUT say OUT. That will be the data type retruned by that function.
Edited :
or POSITION in argument list,or null for function return value
-SK
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