utPLSQL: How can i compare two tables?

Question

Lets say i have table 1 and table 2. Table 2 is the updated version of table one. It can have same or updated structure, columns and data. I want to compare those two tables.

Are you really using the UTPLSQL framework? Some of your previous questions suggest you were hand-rolling your unit tests. If you are using UTPLSQL please clarify whether v2 or v3 - they have completely different APIs. — APC, Nov 21 '18 at 12:55
Yes, i'm using utPLSQL v3. I have already found the solution. Thank you. — Success Shrestha, Nov 21 '18 at 15:21
If you have found a solution then please post it as an answer, It may help other Seekers in the future. — APC, Nov 21 '18 at 16:33

score 1 · Answer 1 · answered Nov 21 '18 at 06:11

=> Sample Query to compare the structure of tables (add columns like datatype and other comparison parameters as you need ) here using all_tab_cols:

SELECT
    t1.table_name
   ,t2.table_name
   ,t1.column_name
   ,t2.column_name
FROM
    (
        SELECT
            *
        FROM
            all_tab_cols
        WHERE
            table_name = 'TEMP1'
    ) t1
    FULL OUTER JOIN (
        SELECT
            *
        FROM
            all_tab_cols
        WHERE
            table_name = 'TEMP2'
    ) t2 ON t1.owner = t2.owner
            AND t1.column_name = t2.column_name;

To Compare data :
1. You can Use a similar query with join different types of join to compare like left and right join.
  
  SELECT * FROM temp1 t1 FULL JOIN temp2 t2 ON t1.id = t2.id;
2. You can Use Set operations like union ,unionall and intersect to compare further use distinct.

score 1 · Answer 2 · edited Aug 04 '19 at 17:29

1

If you want to compare all columns in 2 tables then try below query

select * from table1 t1,table2 t2 where t1.id = t2.id

But if you want compare some specified columns then try below query

select t1.column,t2.column from table1 t1,table2 t2 where t1.id = t2.id
group by t1.column,t2.column

It should be work for your requirement.

edited Aug 04 '19 at 17:29

GolezTrol

114,394
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answered Nov 21 '18 at 06:48

kishore cheruku

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score 1 · Accepted Answer · answered Nov 22 '18 at 04:28

My requirement was to compare columns, data and constraints of two tables using utPLSQL. i met my requirement by using native refcursors.

For data comparison:

OPEN p_store FOR SELECT * FROM customers@dblink2;
OPEN p_store2 FOR SELECT * FROM customers2@dblink2;
ut.expect(p_store).to_equal(p_store2);

For column comparison:

OPEN p_store FOR
SELECT
    A.COLUMN_NAME,
    A.DATA_TYPE,
    A.DATA_LENGTH
FROM
    (SELECT * FROM USER_TAB_COLUMNS@dblink2 WHERE TABLE_NAME  = 'CUSTOMERS') A;
OPEN p_store2 FOR
SELECT
  B.COLUMN_NAME,
  B.DATA_TYPE,
  B.DATA_LENGTH
FROM
  (SELECT * FROM user_tab_columns@dblink2 WHERE table_name = 'CUSTOMERS') B;
ut.expect(p_store).to_equal(p_store2);

I using utPLSQL V3. If you're using v2 then utassert.eqtable can be used.

utPLSQL: How can i compare two tables?

3 Answers3

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