SAP HANA SQLScript · Arrays, Dynamic SQL, Exceptions & Transactions

Before HANA 2.0 SPS 04, a read-only SAP BW transformation marked READS SQL DATA couldn't use dynamic SQL at all. Why, and what changed?

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More in Arrays, Dynamic SQL, Exceptions & Transactions

Inside a procedure you run a dynamic SELECT with EXECUTE IMMEDIATE (no INTO). You then try to use its rows later in the code. Why can't you?

You build dynamic SQL that selects from a local table variable :lt_tmp. You try to concatenate :lt_tmp into the statement string the way you do for a scalar id. What breaks, and what's the fix?

You want an error-log row to persist even if the calling transaction later rolls back. What block do you wrap the INSERT in, and what happens at the block's end?

Inside a BEGIN AUTONOMOUS TRANSACTION block you try to CALL another procedure and assign a table variable. Why does this fail, and what's the deadlock trap?

Can you raise a built-in SQL error like 304 (division by zero)? What codes may SIGNAL use, and what does it populate?

Inside a handler you log the error, then want to keep propagating it unchanged to the caller. Which statement, and how would you instead enrich the message with the failing procedure's name?

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