MYSQL语法错误,while_sym时意外,应为_输入的结尾或“;”
我正在尝试创建一个归档事件,我想到的是这样的:MYSQL语法错误,while_sym时意外,应为_输入的结尾或“;”,mysql,Mysql,我正在尝试创建一个归档事件,我想到的是这样的: SET @Date = NULL; SET @SEDOL = NULL; CREATE EVENT IF NOT EXISTS Archive_Event ON SCHEDULE EVERY 1 DAY DO SELECT @Date = Date,@SEDOL = SEDOL from daily.analytics where Date = (SELECT MIN(Date) from daily.ana
SET @Date = NULL;
SET @SEDOL = NULL;
CREATE EVENT IF NOT EXISTS Archive_Event
ON SCHEDULE EVERY 1 DAY
DO
SELECT @Date = Date,@SEDOL = SEDOL
from daily.analytics
where Date = (SELECT MIN(Date)
from daily.analytics
WHERE Date < date_sub(NOW(), INTERVAL 21 DAY))
order by SEDOL desc limit 1
WHILE @date is not null
begin
begin transaction
-- Adds old line to archive
insert into daily.Archive_analytics
select * from daily.analytics where Date = @Date AND SEDOL = @SEDOL
-- Deletes old line from main table
delete from daily.analytics where Date = @Date AND SEDOL = @SEDOL
commit transaction
-- Find the next greater minimum value
SELECT @Date = Date,@SEDOL = SEDOL
from daily.analytics
where Date = (SELECT MIN(Date)
from daily.analytics
WHERE Date < date_sub(NOW(), INTERVAL 21 DAY))
order by SEDOL desc
limit 1
END WHILE
END
SET @Date = NULL;
SET @SEDOL = NULL;
delimiter |
CREATE EVENT IF NOT EXISTS daily.Archive_Event_HOUR
ON SCHEDULE EVERY 1 DAY
DO
begin
SELECT @Date = Date,@SEDOL = SEDOL
from daily.analytics
where Date = (SELECT MIN(Date)
from daily.analytics
WHERE Date < date_sub(NOW(), INTERVAL 21 DAY))
order by SEDOL desc limit 1;
WHILE @Date is not null DO
start transaction;
-- Adds old line to archive
insert into daily.Archive_analytics
select * from daily.analytics where Date = @Date AND SEDOL = @SEDOL;
-- Deletes old line from main table
delete from daily.analytics where Date = @Date AND SEDOL = @SEDOL;
commit;
-- Find the next greater minimum value
SELECT @Date = Date,@SEDOL = SEDOL
from daily.analytics
where Date = (SELECT MIN(Date)
from daily.analytics
WHERE Date < date_sub(NOW(), INTERVAL 21 DAY))
order by SEDOL desc
limit 1;
END WHILE;
END|
delimiter ;
搜索web这似乎或多或少是正确的,但是我的WHILE语句出现语法错误,WHILE_sym意外,应为输入的结尾或“;”我不太清楚为什么
非常感谢您的帮助。因此,原来问题是由于分隔符和代码中有多个块造成的。没有语法错误的版本如下所示:
SET @Date = NULL;
SET @SEDOL = NULL;
CREATE EVENT IF NOT EXISTS Archive_Event
ON SCHEDULE EVERY 1 DAY
DO
SELECT @Date = Date,@SEDOL = SEDOL
from daily.analytics
where Date = (SELECT MIN(Date)
from daily.analytics
WHERE Date < date_sub(NOW(), INTERVAL 21 DAY))
order by SEDOL desc limit 1
WHILE @date is not null
begin
begin transaction
-- Adds old line to archive
insert into daily.Archive_analytics
select * from daily.analytics where Date = @Date AND SEDOL = @SEDOL
-- Deletes old line from main table
delete from daily.analytics where Date = @Date AND SEDOL = @SEDOL
commit transaction
-- Find the next greater minimum value
SELECT @Date = Date,@SEDOL = SEDOL
from daily.analytics
where Date = (SELECT MIN(Date)
from daily.analytics
WHERE Date < date_sub(NOW(), INTERVAL 21 DAY))
order by SEDOL desc
limit 1
END WHILE
END
SET @Date = NULL;
SET @SEDOL = NULL;
delimiter |
CREATE EVENT IF NOT EXISTS daily.Archive_Event_HOUR
ON SCHEDULE EVERY 1 DAY
DO
begin
SELECT @Date = Date,@SEDOL = SEDOL
from daily.analytics
where Date = (SELECT MIN(Date)
from daily.analytics
WHERE Date < date_sub(NOW(), INTERVAL 21 DAY))
order by SEDOL desc limit 1;
WHILE @Date is not null DO
start transaction;
-- Adds old line to archive
insert into daily.Archive_analytics
select * from daily.analytics where Date = @Date AND SEDOL = @SEDOL;
-- Deletes old line from main table
delete from daily.analytics where Date = @Date AND SEDOL = @SEDOL;
commit;
-- Find the next greater minimum value
SELECT @Date = Date,@SEDOL = SEDOL
from daily.analytics
where Date = (SELECT MIN(Date)
from daily.analytics
WHERE Date < date_sub(NOW(), INTERVAL 21 DAY))
order by SEDOL desc
limit 1;
END WHILE;
END|
delimiter ;
while之后的begin结束在哪里?我想你们应该在beginDo的while循环中有一个结束,你们是说begin事务吗?