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Tag: insert-update

update value only when value changed

I have to update main_table data from another table. Below is statement We will have value in any one column among value_string,value_date in a row or for a key, based on type_key. (like if type_key is string then value_string will have value and value_date is null). There is a trigger which ensure this constraint. even if there was no change

MERGE Statement is not working in Informix v10

I tried to use the merge statement to Insert/Update in Informix v10.0 but it throws a Syntax Error: Could you please help? Answer The MERGE statement was not available in Informix 10.00. It was added in 11.50 — see the MERGE statement in the SQL syntax manual. The new features page suggests it was added in 11.50.xC6, part of the

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