sql - Joining tables with and without concatenated columns -


I have a scenario similar to the following question "". But the question is different that I have to choose from the table T1. Make Table T1 ([1] varchar (2), [2] varchar (5)); The value ('C1', 'Zone', 8), ('C2', 'Alex', 10), ('C3', 'Peer', 'T' 10), ('C4', ' Sarah ', 10); Create Table T2 ([1] varchar (2), [2] varchar (8)); Prices include T2 ([1], [2], [2], '' 3 '' '3' ', 1' ',' '1' ',' 'C5, C1, C4 ', 8);

In the end result, I need to select values ​​from table T1, and there is a flag that has similar non-empty values ​​in Table T2. Even if joining in [Col3] will also have to be considered.

Expected Result

--- John, yes --- (Because â ???? R3â ?? ?? exists)

--- Alex, not ---

--- Pierce, no ---

--- Sarah, yes --- (Because "R1A" exists)

Question

What is the best way to write this question in Oracle 8i?

Try this: 

  SELECT T1.col2, case when T2 If the .col1 is the tap then 'No' or 'Yes' T1 is the end of the left over T2 ON,' T2.col2 + ',' If you have the possible duplicates and you want to eliminate them (yes but showing a yes is). ) Then use it:  
  Select DI1, T2.col2, MAX (Case if T2.col1 then 'No' or 'Yes' END) T1 Join the left OUTER T2 On' , '+ T2.col2 +', 'Choice'%, '+ T1.col1 +',% 'and T1.col3 = T2.col3 Group by T1.col2    < / Html>

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