40 lines
607 B
MySQL
40 lines
607 B
MySQL
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DELIMITER $$
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CREATE OR REPLACE DEFINER=`root`@`localhost` FUNCTION `srt`.`bufferPool_get`()
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RETURNS int(11)
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NOT DETERMINISTIC
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READS SQL DATA
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BEGIN
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/**
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* Devuelve el primer bufferFk de la tabla srt.bufferPool
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*
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* @return Identificador de vn.buffer
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*
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*/
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DECLARE vBufferFk INT;
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DECLARE vBufferPoolFk INT;
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SELECT MIN(id) INTO vBufferPoolFk
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FROM srt.bufferPool;
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IF vBufferPoolFk THEN
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SELECT bufferFk INTO vBufferFk
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FROM srt.bufferPool
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WHERE id = vBufferPoolFk;
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DELETE
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FROM srt.bufferPool
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WHERE id = vBufferPoolFk;
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ELSE
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RETURN NULL;
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END IF;
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END$$
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DELIMITER ;
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