Database Technologies

Some people ask this, How to use the Nested tables in PPAS? Since there is no Constructor Function Available and Oracle Compatibility Documentation is based on Procedure/Functions. So, I thought to give an overview on this. We can use nested tables by creating some manual Constructor and Using those constructor function to fetch the data or inserting the data: Following is an example: create type test_type as object (col1 varchar(200)); create type nested_type as table of test_type; create table test_nested(col1 nested_type); Now, Create some constructor Functions which can convert the data types as given below: --- Constructor Function of test_type CREATE OR REPLACE FUNCTION test_type(varchar) return test_type as declare result test_type; Begin result=row($1); return result; END; And --Constructor Function of nested_type CREATE OR REPLACE FUNCTION nested_type(test_type[]) return nested_type as counter integer:=0; rec test_type; result nested_type; BEGIN for rec i

This happened to me when I was trying to migrate the Oracle Database to Advanced Server & PostgreSQL. This kind of error comes if Data in Oracle have some junk/invisible Characters which conversion is unknown. select * from junk_character; 'ORA-29275: partial multibyte character' Oracle Descritption for this error is given below: ORA-29275: partial multibyte character Cause: The requested read operation could not complete because a partial multibyte character was found at the end of the input. Action: Ensure that the complete multibyte character is sent from the remote server and retry the operation. Or read the partial multibyte character as RAW. Which doesn't give much information. To find the the column and rows which have those junk/invisible character user can try following trick. a. Select the data column wise as given below: select col1 from tablename; select col2 from tablename; If you are sure about the columns which has those junk charac