MySQL上的所有复杂查询的错误（2014年。查询命令）

On all complex querys (returning many results and running long) I get the same error after some time: Error Code: 2014. Commands out of sync; you can't run this command now

在所有复杂的查询中（返回许多结果并运行很长时间）我在一段时间后得到相同的错误：错误代码：2014。命令不同步;你现在不能运行这个命令

e.g.:

例如。：

## Prozedur Droppen
DROP PROCEDURE IF EXISTS ifob.uspUpdateHeatStatsAll;
SET SQL_SAFE_UPDATES = 0;
## Prozedur erstellen
DELIMITER $$
CREATE DEFINER=`root`@`%` PROCEDURE `uspUpdateHeatStatsAll`()
BEGIN

    ## Update table
    DECLARE _HeatNrDINT int;
    DECLARE _count int;
    DECLARE _act int;

      # Bearbeitungsliste erstellen
    DROP TABLE IF EXISTS tmptblColumns;
    CREATE TEMPORARY TABLE tmptblColumns (`HeatNrDINT` int) ENGINE = MEMORY;
    # Delete old data
    # Add columns to workertable
    INSERT INTO tmptblColumns (`HeatNrDINT`) SELECT DISTINCT `Input.General.Values.HeatNrDINT` from tblmeasuringvaluesyear;
    SET _count = (SELECT count(*) FROM tmptblColumns);
    SET _act = 1;
    #debug
    #SELECT * FROM tmptblColumns;

    BEGIN
        DECLARE _done BOOL DEFAULT FALSE;
        DECLARE column_cursor CURSOR FOR SELECT `HeatNrDINT` FROM `tmptblColumns`;
        DECLARE CONTINUE HANDLER FOR NOT FOUND SET _done = TRUE;

        #Alte Daten löschen
        OPEN column_cursor;
        FETCH column_cursor INTO _HeatNrDINT;
        read_loop: LOOP
            SELECT CONCAT('Bearbeite:',_HeatNrDINT,'(',_act,'/', _count,')') as `Status`;
            CALL uspUpdateHeatStats(_HeatNrDINT);
            SET _act = _act+1;
            FETCH column_cursor INTO _HeatNrDINT;
            IF _done THEN
                LEAVE read_loop;
            END IF;
        END LOOP;
        CLOSE column_cursor;
        # Execute STMT
      END;
END$$
DELIMITER ;

#TEST
CALL uspUpdateHeatStatsAll();
SELECT * FROM tblheatdata;

works for 50 loops and then it quits.

适用于50个循环，然后退出。

1 个解决方案

#1

I have also run into this problem. The maximum number of result sets in MySQL Workbench defaults to 50. It will crash after 50 because the previous results have not been retrieved.

我也遇到过这个问题。 MySQL Workbench中的最大结果集数默认为50.它会在50之后崩溃，因为之前的结果尚未检索到。