SQL query want to eliminate the same data in multiple tables - php

Question

**Table :1** **Table:2**
id folio num num1 num2 num3 num4 num5 id number folio
-------------------
------------------------------------------
1 abcde 1000 2000 3000 4000 5000 0 1 6000 abcde
2 1000 abcde
2 abcde 6000 3 7000 abcde
4 5000 abcde
5 10000 abcde
output want to be
id number folio
---------------
1 7000 abcde
2 10000 abcde
----------------------
I USED THE SQL QUERY OF
SELECT * FROM Table2 WHERE id_t = 'abcde'
AND number NOT IN(SELECT CONCAT(num,num1,num2,num3,num4,num5) FROM Table1 WHERE id_t = 'abcde')
-----------------------------------------------
SQL query want to eliminate the same data in multiple tables.
Want to compare two table but different fields ,if data in that table it want to eliminate only the unique data want to show
1.table2 number(field) want to check table1 num,num1,num2,num3,num4,num5(field)
2.values which was not in table 1 alone want to display

Answer 1

Doing a LEFT OUTER JOIN on a sub query. The sub query returns every num for each folio.
The WHERE clause then ensures only rows are returned where there is no match (ie, nothing matching found in the sub query).
SELECT Table2.id,
Table2.number,
Table2.folio
FROM Table2
LEFT OUTER JOIN
(
SELECT folio, num AS aNum FROM table1
UNION
SELECT folio, num1 AS aNum FROM table1
UNION
SELECT folio, num2 AS aNum FROM table1
UNION
SELECT folio, num3 AS aNum FROM table1
UNION
SELECT folio, num4 AS aNum FROM table1
UNION
SELECT folio, num5 AS aNum FROM table1
) sub0
ON Table2.folio = sub0.folio
AND Table2.number = sub0.num
WHERE sub0.folio IS NULL
Alternative that might make better use of index:-
SELECT Table2.id,
Table2.number,
Table2.folio
FROM Table2
LEFT OUTER JOIN table1 t1a ON Table2.folio = t1a.folio AND Table2.number = t1a.num
LEFT OUTER JOIN table1 t1b ON Table2.folio = t1b.folio AND Table2.number = t1b.num1
LEFT OUTER JOIN table1 t1c ON Table2.folio = t1c.folio AND Table2.number = t1c.num2
LEFT OUTER JOIN table1 t1d ON Table2.folio = t1d.folio AND Table2.number = t1d.num3
LEFT OUTER JOIN table1 t1e ON Table2.folio = t1e.folio AND Table2.number = t1e.num4
LEFT OUTER JOIN table1 t1f ON Table2.folio = t1f.folio AND Table2.number = t1f.num5
WHERE COALESCE(t1a.num, t1b.num1, t1c.num2, t1d.num3, t1e.num4, t1f.num5) IS NULL
EDIT
Another way to do it, although not keen on this one. Uses a sub query to concatenate up all the values of the various num fields, and then GROUP_CONCAT to do that over various lines. Then joins against that using FIND_IN_SET. Likely to be inefficient, but for amusement here it is:-
SELECT Table2.id,
Table2.number,
Table2.folio
FROM Table2
LEFT OUTER JOIN
(
SELECT folio, GROUP_CONCAT(CONCAT_WS(',', num, num1, num2, num3, num4, num5)) AS all_num
FROM table1
GROUP BY folio
) sub0
ON Table2.folio = sub0.folio
AND FIND_IN_SET(Table2.number, sub0.all_num) > 0
WHERE sub0.folio IS NULL