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Parent_code child_code CHILD_SK PARENT_SK 00.1 1 ABC.20 ABC 2 null ABC.20 CDE.20 3 null ABC.20 EFG.20 4 null BDE.20 ABC.20 5 null i want to update parent_sk as below based upon join from parent_code with child_code: so output should be like below Parent_code child_code CHILD_SK PARENT_SK 00.1 1 null ABC.20 ABC 2 5 ABC.20 CDE.20 3 5 ABC.20 EFG.20 4 5 BDE.20 ABC.20 5 5
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