New syntax for checking single record in DB

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Checking single record is present in DB without data transfer from DB to application layer.

 

 

 

SPFLI table content.

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Initially there was no way of checking if a record is present in DB or not but instead we use SELECT SINGLE * or up to 1 rows in SQL query. This statement transfers a single record or a single column  value from DB to the application server memory. Now we have a new SQL syntax that checks if a record is present in the DB or not without data transfer. 

SAMPLE CODE- WHERE condition fully specified key

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OUTPUT

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SAMPLE CODE- WHERE condition fully specified key but record not present

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OUTPUT

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SAMPLE CODE- WHERE condition partially specified key

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OUTPUT

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