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Merge Tables in SQL 2005

By rka,

1. First Create the Database

2. Then create the tables

3. Insert the data

4. I would like to merge Table1, Table2 and Table3 based on matching ID's.

Table Data is:

Table1

Table2

Table3

Destination

 

5. The logic and the expected result is:

IF ID is found THEN

return field1 OR field2 OR field3 from Table1 OR Table2 OR Table 3

ELSE

return values from DESTINATION table

END IF

 

id field1 field2 field3
1 a b c
2 d e f
3 g h i
4 j k l

 

6. The actual result we get after executing the query:

Total article views: 1310 | Views in the last 30 days: 1
 
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