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create procedure sp_name()
begin
………
end
2.²ÎÊý´«µÝ
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1.»ù±¾Óï·¨£ºcall sp_name()
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drop procedure sp_name//
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begin
……
end;
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lable:begin
………..
end lable;
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2.Ìõ¼þÓï¾ä
if Ìõ¼þ then
statement
else
statement
end if;
3.Ñ»·Óï¾ä
(1).whileÑ»·
[label:] WHILE expression DO
statements
END WHILE [label] ;
(2).loopÑ»·
[label:] LOOP
statements
END LOOP [label];
(3).repeat untilÑ»·
[label:] REPEAT
statements
UNTIL expression
END REPEAT [label] ;
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1.show procedure status
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2.show create procedure sp_name
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+ ¼Ó SET var1=2+2; 4
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% ȡģ SET var6=10%3 ; 1
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< СÓÚ 2<1 False
<= СÓÚµÈÓÚ 2<=2 True
>= &nb
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1.½¨±í¹ý³ÌÈçÏÂ
create database test default character set utf8 collate utf8_general_ci
use test;
create table devicedata
(
ID int auto_increment PRIMARY key ,
TimeStamp datetime,
Device_Name varchar(100),
Tag_Name varchar(100),
Value varchar(50)
)
2 ......
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