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Asked: 2026-06-07T17:54:23+00:00

Join both the tables and get first table data and second table data which

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Join both the tables and get first table data and second table data which is missing in Table1 by comparing on Col1 and Col11 I guess. As all the ID’s (Col1 and Col11) should come together

Table1

Col1      Col2            Col3                  Col4      Col5            Col6 
1345653   330760137950    2012-07-09 21:40:29   1345653   331760137950    1341895229
1345653   110909316904    2012-07-09 21:29:06   1345653   111909316904    1341894546
1345653   221065796761    2012-07-09 19:31:48   1345653   221065796761    1341887518

Table2

Col11        Col22         Col33                  
1345653      330760137950   2012-07-09 21:40:29     
1345653      110909316904   2012-07-09 21:29:06     
1345653      221065796761   2012-07-09 19:31:48     
1345653    **150851771618**   2012-07-09 18:57:33

If you look above two tables data, last line in Table2 means Col22-150851771618 is missing in Table1. So I need to display Table1 full data and last line from Table2 as Col22 is missing in Table1 by joining on Col1 and Col11, like this below output.

1345653   330760137950    2012-07-09 21:40:29   1345653   331760137950    1341895229
1345653   110909316904    2012-07-09 21:29:06   1345653   111909316904    1341894546
1345653   221065796761    2012-07-09 19:31:48   1345653   221065796761    1341887518
1345653 **150851771618**  2012-07-09 18:57:33   NULL       NULL           NULL

How can I do this using JOIN by joining on Col1 and Col11? I am having lot of confusion on this. Can anyone help me?

Update:- Some more scenarios

Table1

Col1            Col2            Col3                   Col4       Col5                Col6
1345653     330760137950    2012-07-09 21:40:29     1345653     331760137950        1341895229
1345653     110909316904    2012-07-09 21:29:06     1345653     111909316904        1341894546
1345653     221065796761    2012-07-09 19:31:48     1345653     221065796761        1341887518

704318001   320941581940    2012-07-09 14:44:48     704318001   321941581940        1341870288

Table2

Col11        Col22         Col33                   Col44   Col55   Col66
1345653      330760137950   2012-07-09 21:40:29     NULL    NULL    NULL
1345653      110909316904   2012-07-09 21:29:06     NULL    NULL    NULL
1345653      221065796761   2012-07-09 19:31:48     NULL    NULL    NULL
1345653    **150851771618**   2012-07-09 18:57:33   NULL    NULL    NULL

704318001  **290738585064**    2012-07-09 14:36:49     NULL    NULL    NULL

So Output should be like this- Meaning for this 1345653 ID, I need all record at same place and same with 704318001. So if you look the output, all the 1345653 are together and all 704318001 are together.

1345653   330760137950    2012-07-09 21:40:29   1345653   331760137950    1341895229
1345653   110909316904    2012-07-09 21:29:06   1345653   111909316904    1341894546
1345653   221065796761    2012-07-09 19:31:48   1345653   221065796761    1341887518
1345653 **150851771618**  2012-07-09 18:57:33   NULL       NULL           NULL


704318001   320941581940    2012-07-09 14:44:48     704318001   321941581940        1341870288 
704318001  **290738585064**    2012-07-09 14:36:49     NULL    NULL    NULL

Basically, get the first table full and second table whose data is not there in Table1

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1 Answer

  1. Editorial Team

    A LEFT JOIN should work..

    But based on your data, I think you should be joining on Col22 to Col2, since Col1 and Col11 don’t have unique values, so I don’t know how they are associated.

    SELECT t2.Col11, t2.Col22, t2.Col33, t1.Col4, t1.Col5, t1.Col6
FROM 
    Table2 t2 LEFT JOIN
    Table1 t1 ON t1.Col2 = t2.Col22
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