如果所有列为负数,则需要将其设置为0。目前,我一次只做一列:
UPDATE #ListingRank SET Distance = 0 WHERE Distance < 0
UPDATE #ListingRank SET ActionDays = 0 WHERE ActionDays < 0
UPDATE #ListingRank SET Price = 0 WHERE Price < 0
UPDATE #ListingRank SET Beds = 0 WHERE Beds < 0
UPDATE #ListingRank SET Baths = 0 WHERE Bat
UPDATE tblstoreitems SET price='499' WHERE TypeOrModel = 'A130';
UPDATE tblstoreitems SET price='599' WHERE TypeOrModel = 'A140';
UPDATE tblstoreitems SET price='1899' WHERE TypeOrModel = 'Alpha Style';
UPDATE tblstoreitems SET price='1699' WHE
UPDATE some_table set rank=1 WHERE id=25
UPDATE some_table set rank=2 WHERE id=15
UPDATE some_table set rank=3 WHERE id=10
UPDATE some_table set rank=4 WHERE id=12
UPDATE some_table set rank=5 WHERE id=13
UPDATE some_table set rank=6 WHERE id=14
UPDATE some_table set rank=7 WHERE id=11
因为我想不出一个查询,我怎
跟进。
更新2列中的多行最有效的查询是什么?
UPDATE example_table SET variable1 = 12 WHERE id=1;
UPDATE example_table SET variable2 = 'blue' WHERE id=1;
UPDATE example_table SET variable1 = 42 WHERE id=2;
UPDATE example_table SET variable2 = 'red' WHERE id=2;
UPDATE example_table SET variable1 = 32 WHER
每月一次,我们从另一家公司收到一个文件,我们需要将它调整到我们的数据库(在Server中)。为此,我们运行了几个需要很长时间的更新。
有没有办法将所有这些更新“转换”成一个语句,以便它只在表中运行一次?(这是张很大的桌子!)
我们现在用的是这样的东西:
update Table1 set column01 = 0 where column01 = ' ' or column01 = '';
update Table1 set column02 = 0 where column02 = ' ' or column02 = '';
u
我想执行许多这样的SQL UPDATE语句:
UPDATE cityd SET time_zone='-7.000000' WHERE locId = 173567;
UPDATE cityd SET time_zone='-8.000000' WHERE locId = 173568;
UPDATE cityd SET time_zone='-6.000000' WHERE locId = 173569;
UPDATE cityd SET time_zone='-5.000000' WHERE locId = 173570;
U
我想在一条语句中执行多个查询,这是我的代码,它不起作用。
$stmt = $mysqli->prepare("UPDATE menu SET DESCRIPTION= ('$txt1'), VISIBLE=('$ckHOME1')
where id='1';
UPDATE menu SET DESCRIPTION= ('$txt1'), VISIBLE=('$ckHOME1') where id='1';
UPDATE menu SET DESCRIPTION= ('$t
有没有更好的方法来做这件事?
我必须对表格执行update multiple columns操作,如下所示:
UPDATE tableA
SET column1= '1234' WHERE column1 is NOT NULL;
UPDATE tableA
SET column2= '1234' WHERE column2 is NOT NULL;
UPDATE tableA
SET column3= '1234' WHERE column3 IS NOT NULL OR column3<>
我只是有一个sql怀疑,实际上我需要对每个颜色值多次使用更新查询.每一次都很难检查每种颜色的状况。
在大容量“update”下面是否有任何一条sql语句?请告诉我.
update `myTable` set `COLOR`='white' WHERE `CATEGORY` = 'Dress' and `NAME` like '%white%'
update `myTable` set `COLOR`='red' WHERE `CATEGORY` = 'Dress' and `NAME` like '%r
是否可以在一个sql查询中更新多个记录?
因此,使用id A和ip 1.1.1.1将所有打印机的状态更新为工作(true),并将所有其他打印机更新为不工作(false)
因此,基本上将这两个查询合并为一个查询:
update printers set status = true ,row_update_date =sysdate where printer id = 'A' and printer ip = '1.1.1.1'
update printers set status = false ,row_update_date =sysdate where p
如果找不到任何记录,有没有办法修改这个查询,使其在等级列中返回'0‘?现在,当没有找到任何东西时,我会得到一个空白行。
SELECT COALESCE(Score, 0) AS Score, COALESCE(Grade,0) AS Grade, LAST_UPDATE, '' as dummy
FROM (
SELECT (CASE ScanName WHEN '%=APP%' THEN '= Network System' END) AS System,
(sum(CASE severity WHEN 1 THEN 10 W
使用T-SQL,我想执行一条UPDATE语句,该语句仅在定义了相应的变量时才设置列。
下面是我想要实现的一个简单的伪tsql示例:
--Declaring vars
@ID int,
@Name nvarchar(20),
@Password nvarchar(10)
--Run the update
UPDATE User
SET
IF LEN(@NAME) > 0
Name = @Name,
IF LEN(@Password) > 0
Password = @Password
从我通过阅读IF条件在T-SQL中的工作原理可以看出,为了实现与上述伪代码相同的结果,我
我可以在UPDATE子句中使用多个WHEN条件来更新单个列吗?
我要更新具有列ID和名称的表表:
下面的查询是否正确?
UPDATE TABLE
SET id = CASE id
WHEN id IN (2, 3, 4) THEN 1
WHEN id= 5 THEN 8
WHEN id IN(9, 7) THEN 6
WHERE name = 'abc'
我有三个更新
UPDATE [Person]
SET [Email] = @Prefix
WHERE [Id] = @PersonId AND ISNULL([Email], '') <> ''
UPDATE [Person]
SET [Phone] = @Phone
WHERE [Id] = @PersonId AND ISNULL([Phone], '') <> ''
UPDATE [Person]
SET [Skype] = @Skype
WHERE [Id] = @PersonId AND IS
在MERGE语句中查找查询逻辑
MERGE <statement>
WHEN MATCHED
UPDATE active=1, value='testnew' where field='1200' and id=4
UPDATE active=0 where field='1200' and id <> 4 --This update is based on first update
WHEN UNMATCHED <statement>
在MERGE之前;
id field value a
我有以下扳机:
CREATE TRIGGER Users_Delete
ON Users
AFTER DELETE
AS
BEGIN
SET NOCOUNT ON;
-- Patients
UPDATE Patients SET ModifiedByID=NULL WHERE ModifiedByID=ID;
UPDATE Patients SET CreatedByID=NULL WHERE CreatedByID=ID;
UPDATE Patients SET DeletedByID=NULL WHERE DeletedByID
有谁能建议如何使以下4条update语句变为单个update语句?
update dbo.FACOD set LowValue ='07/02/2010' where Fieldname in ('AYStartDate','Dateloanstart')and AwardYear='2012-13'
update dbo.FACOD set LowValue ='07/02/2011' where Fieldname in ('AYStartDate','Dateloanstart'
今天有两个问题,我是一只忙碌的蜜蜂,幸运的是我有一个很棒的社区可供我使用!
我这里的问题是:
我有一个字段需要根据现有的字段数据进行更新。
If Gender = F then foo = 1
If Gender = M then foo = 2
If Gender = Male then foo = 2
If Gender = Female then foo = 1
If Gender is not above then foo = 3
这就是我所拥有的:
update EmailAddresses
set Priority1 = '1'
where GENDER_
有没有可能有这样的东西? UPDATE TABLE foo
SET bar = 1
WHERE foo_bar = 'cat';
UPDATE TABLE foo
SET bar = 2
WHERE foo_bar = 'dog';
UPDATE TABLE foo
SET bar = 3
WHERE foo_bar = 'elephant'; 在一份声明中?
我必须这么做。 UPDATE tx_seminars_attendances SET user=941 WHERE uid=791;
UPDATE tx_seminars_attendances SET user=54 WHERE uid=3439;
UPDATE tx_seminars_attendances SET user=453 WHERE uid=945;
UPDATE tx_seminars_attendances SET user=1421 WHERE uid=3219;
UPDATE tx_seminars_attendances SET user=33 WHERE uid=
UPDATE crm_accounts
SET
reg = "Sim"
WHERE age >= 17
AND age <= 35
AND balance > 0.00
AND type = "Júnior";
UPDATE crm_accounts
SET
reg = "Não"
WHERE age >= 17
AND age <= 35
AND balance = 0.00
AND type = "Júnior";
UPDATE crm_accounts
我想用这条语句进行一次查询,但我不知道如何进行查询
UPDATE alarm SET alarm1 = 1 , alarm1time = NOW() WHERE alarm1 != 1 AND id = 1;
UPDATE alarm SET alarm2 = 1 , alarm2time = NOW() WHERE alarm2 != 1 AND id = 1;
UPDATE alarm SET alarm3 = 1 , alarm3time = NOW() WHERE alarm3 != 1 AND id = 1;
UPDATE alarm SET alarm4 = 1 , alarm4t
下面是有效的查询
UPDATE 18_6_TransactionPartners SET CompanyName = ?, VatCode = ?
WHERE CompanyName = ? OR RegistrationNumber = ?
我只想在一个查询中进行多次更新,比如
UPDATE 18_6_TransactionPartners SET CompanyName = ?, VatCode = ?
WHERE CompanyName = ? OR RegistrationNumber = ?
UPDATE 18_6_TransactionPartners SET Company
我经常有像下面这样的代码行:
UPDATE my_table SET name = 'x' WHERE Original = 'a'
UPDATE my_table SET name = 'y' WHERE Original = 'b'
UPDATE my_table SET name = 'z' WHERE Original = 'c'
UPDATE my_table SET name = 'k' WHERE Original =
如何组合这两个update语句:
update Special_quota set Status=0,Additional_msg_quota=0 where User_id not in('1','2','3')
update Special_quota set Status=1,Additional_msg_quota=30 where User_id in('1','2','3')
我可以在一个而不是三个中运行这3条更新语句吗?我只能找到mysql的例子来说明如何做到这一点。
update [NoteAlertLog]
set alertmessage = NULL where alertmessage = ''
update [NoteAlertLog]
set notes = NULL where cast([notes] as nvarchar(max)) = ''
update [NoteAlertLog]
set externalnotes = NULL where cast(externalnotes as
我有这个SQL命令,我想在一个命令中运行这些命令。但是如果我从它们之间去掉分号,它就不再起作用了;
UPDATE runners SET money=20000
WHERE rrank >= 3;
UPDATE runners SET money=25000
WHERE nev = 'Master';
UPDATE TT
SET DEATHDATE = NULL
FROM TEMP_TABLE TT
WHERE LTRIM(RTRIM(DEATHDATE)) = ''
UPDATE TT
SET CURRENTDATE= NULL
FROM TEMP_TABLE TT
WHERE LTRIM(RTRIM(CURRENTDATE)) = ''
UPDATE TT
SET BIRTHDATE = NULL
FROM TEMP_TABLE TT
WHERE LTRIM(RTRIM(BIRTHDATE)) = ''
或
UPDATE T
UPDATE dbo.TestStudents
SET LASTNAME =
( CASE
WHEN (LASTNAME = 'AAA') THEN 'BBB'
WHEN (LASTNAME = 'CCC') THEN 'DDD'
WHEN (LASTNAME = 'EEE') THEN 'FFF'
ELSE (LASTNAME)
END )
如果我们只更新一列,则此语句可以很好地工作。但我感兴趣的是在不同的条件下更新不同的列。如下所示:
UPDATE dbo.TestStuden
我有一个SQL表“收件箱”的列" modem_id“和”用户“我想创建一个SQL触发器时,modem_id是1,”用户“列插入值'A';2的用户'B'...
我已经使用if else创建了一个SQL触发器:
delimiter //
CREATE TRIGGER upd_user_inbox BEFORE insert ON inbox
FOR EACH ROW
BEGIN
IF NEW.modem_id = 0 THEN
UPDATE `inbox` SET `user` = 'A' W
我在一个表中有7个数量列,表示customer...this一周中每一天的顺序,这是设计出来的,不能更改。是否可以执行这样的更新
update customerOrder
case weekday(someDate) when 'SUN' then set Quantity1 = 1 end,
case weekday(someDate) when 'MON' then set Quantity2 = 1 end,
case weekday(someDate) when 'TUE' then set Quantity3 = 1 end,
我有一个表,如下所示:
ID Key Value Order
1 gender m 0
2 gender f 0
34 age 10 0
35 age 80 0
要更新这些行,我必须使用以下命令:
UPDATE `DemoGroup` SET `value` = 'male' WHERE `value` = 'm'
UPDATE `DemoGroup` SET `value` = 'female' WHER
是否有可能在性能方面优化这些查询: UPDATE PEOPLE
SET ID_STATE = CASE
WHEN ID_STATE = 2 THEN 9
WHEN ID_STATE = 3 THEN 9
WHEN ID_STATE = 7 THEN 8
WHEN ID_STATE = 8 THEN 9
ELSE 0
我在这里找到了更新一个字段的方法:
UPDATE person
SET name = CASE id
WHEN 1 THEN 'Jim'
WHEN 2 THEN 'Mike'
WHEN 3 THEN 'Precious'
END
WHERE id IN (1,2,3)
我的问题是如何更新多个字段?例如:
UPDATE person
SET name = CASE, sex = CASE id
WHEN 1 THEN 'Jim', 'fe
例如,我有一个表ACCOUNT,它有两列: ID和A_NUMBER。我想用不同的值更新单个查询中的A_NUMBER值。"UPDATE ACCOUNT SET A_NUMBER="0135“WHERE ID=131;UPDATE ACCOUNT SET A_NUMBER="0145”WHERE ID=132;UPDATE ACCOUNT SET A_NUMBER="0155“WHERE ID=133;UPDATE ACCOUNT SET A_NUMBER="0160”WHERE ID=134;UPDATE ACCOUNT SET A_NUMBER="
我有一个名为“system”的表,其中有2列‘变量’和‘值’,其中有以下数据:
变量=‘用户名’=>值= 'myuser‘
变量=‘密码’=>值= 'mypass‘
我想在一个查询中更新这两个字段。
这两个查询是:
UPDATE System SET Value = 'myuser' WHERE Variable = 'Username'
UPDATE System SET Value = 'mypass' WHERE Variable = 'Password'
我想更新同一列的表,为不同的情况在一次拍摄。我能做到这一点的最好方法是什么?例如,我希望在一个SQL查询中实现与以下语句相同的功能:
UPDATE DANCER_TYPE SET TYPE = 'BALLET' WHERE LOGIN = 'arachel';
UPDATE DANCER_TYPE SET TYPE = 'EXOTIC_BELLY_DANCER' WHERE LOGIN = 'mandanah';
UPDATE DANCER_TYPE SET TYPE = 'JAZZ' WHERE LOGIN =
是否可以将以下更新查询合并到单个查询中?
UPDATE
tag.ItemTagValue
SET [Value] = @firstNode
WHERE FkTagID = 6 and TagIndex = 1
UPDATE tag.ItemTagValue
SET [Value] = 'Unknown'
WHERE FkTagID = 7 and TagIndex = 1
UPDATE tag.ItemTagValue
SET [