Label:Keyword is case insensitiveFor example, select, from, case can beIdentifiers are case-sensitiveFor example, table name, column nameIf the identifier is not double-quoted, the default is uppercaseIdentifiers are executed in the original case if double quotation marks are addedHowever, when the table name is enclos
We know that character fields can contain uppercase and lowercase characters. How can we ignore case-insensitive characters in SQL fuzzy queries?
For example, select * From tablename where fieldb like 'a % '. You want to obtain all records starting with 'A' or 'A.
The following explains how to use 'sort sequence ':
* The default value of the system value qsrtseq is * hex;
* The default value of the srts
Solutions under Windows: My.ini inside the mysqld partJoin lower_case_table_names=2 [Mysqld]lower_case_table_names=2Set-variable=lower_case_table_names=0Port= 3306 Note: 1 indicates that case-insensitive 2 indicates case sensitivity Then reboot the MYSQLD server and reboot the MYSQLD service in XAMPP to the XAMPP directory Mysql_start.batAfter restarting the MYSQ
Label:Use [EShop]GO/****** object:storedprocedure [dbo]. [Sp_findproc] Script DATE:2015/8/19 11:05:24 ******/SET ANSI_NULLS onGOSET QUOTED_IDENTIFIER ONGOALTER PROCEDURE [dbo]. [Sp_findproc] (@akey varchar (255)) As --Find keywords in all stored procedures, keywords are not case sensitiveDECLARE @aname as varchar (700)DECLARE @atext as varchar (8000)DECLARE @acolid as intDECLARE @pos as intDECLARE @start as intDECLARE @end as intDECLARE @shorttext as
] is not selected, SQL Server does not define the sorting method for lowercase and uppercase letters.
Solution:Method 1. When installing SQL, select case sensitive or recreate mastar after installation, and select case sensitiveC:
server|sqlserver| First type: (cricket)
ALTER TABLE TB
ALTER COLUMN colname nvarchar (MB) COLLATE chinese_prc_ci_as
--No case sensitive
ALTER TABLE TB
ALTER COLUMN colname nvarchar (MB) COLLATE chinese_prc_cs_as
--Case
By default, SQLServer is case insensitive. For example, userNamejesse and userNameJESSE have the same results. When the password is verified, it may be case sensitive to the string and some processing is required. Two methods are introduced: method I: Convert to binary and then compare, because the case-
1. Set SQL script case insensitiveUse [master]GoALTER DATABASE [DatabaseName] COLLATE Chinese_prc_ci_aiGo
2. Set large SQL script case sensitiveUse [master]GoALTER DATABASE [DatabaseName] COLLATE Chinese_prc_cs_aiGo
3. Set refer
, and then use the temporary tables in turn with the left join ... on I finally get the results I want.The actual practiceThe above idea in I think of the moment I was denied, this is the cycle, but also the efficiency of the connection query will be very slow and later people maintenance is also more troublesome. With my colleague's reminder, I used the case to solve the problem.The final code is as follows:Select Realname as ' name ', count (
A few days before the SQL Server in the Birch walk up public accounts see an article MS SQL SERVER2014 link MS SQL Server 2000, then on the phone swallowed looked at a probably, know is due to the Native client version of SQL, Did
Default in SQL Server is not sensitive to case, for example, Username= ' Jesse ' and Username= ' Jesse ' result are the same. When validating a password, you may need to be sensitive to string capitalization, and you need to do some processing to introduce two methods:
Meth
By default, SQL Server is case insensitive. For example, userName = 'jesse 'and userName = 'jesse' have the same results. When verifying the password, you may need to be case sensitive to the string. You need to perform some processing to introduce two methods:
Method I: Co
By default, SQL Server is case insensitive. For example, username = 'jesse 'and username = 'jesse' have the same results. When verifying the password, you may need to be case sensitive to the string. You need to perform some processing to introduce two methods:
Method I: Con
Original article: http://blog.csdn.net/ylqmf/article/details/4972034
Method 1
Write a function
-- String comparison functions that are case sensitive to stringsCreate function [dbo]. [StrComp] (@ Str1 NVARCHAR (50), @ Str2 NVARCHAR (50 ))Returns integer--1 is equal, and its return value is not equal.ASBEGINDeclare @ hashcode1 varbinary (32)Declare @ hashcode2 varbinary (32)Declare @ result int
Select @ has
memory pages optionOn the Start menu, click the Run submenu, and then in the Open box, type gpedit.msc.On the Group Policy console, expand Computer Configuration, and then expand Windows settings.Expand Security Settings, and then expand Local Policies.Select the User Rights Assignment check box.The policy appears in the details pane.In the details pane, double-click Lock Memory Pages.In the Local Security Policy Settings dialog box, click the Add button.In the Select Users or Groups dialog box
Tags: SQL Server case Sensitivity method1. Forcing a column in the database to be changed to case -sensitive recognition For example, to modify a table: userPWD14 column in tb_testtable400 2. Specify in the SQL statement
Source: Click to open the link
Scenario:
Recently, a DB Server occasionally experienced CPU alarms. My mail alarm threshold (please read y threshold) is set to 15%. It didn't take the case at the beginning. I thought it was a statistical query, later, it became more and more frequent.
Exploration:
I decided to check what the fault was. The Troubleshooting sequence is as follows:
1. First enable Cacti monito
Tags: details targe art BSP-logs number here keywordSELECT * from user_info WHERE USERNAME =: USERNAME;This way: The value of username is not case-sensitiveCause: The collation of the database is set to Chinese_prc_ci_as, which seems to be the default value?Processing method:Original: 79631156SELECT * from User_info WHERE USERNAME collate Chinese_PRC_CS_AS_WS =: USERNAME;Add the
From Click on Open link
Scene:
A recent DB server occasional CPU alarm, my email alarm threshold (Please read yù) value set is 15%, the beginning is not the case, thinking is what the statistical category of inquiries, and then more frequent.
Explore:
I decided to check to see what was going on, and the Order of my troubleshooting was as follows:
1, first turn on cacti monitoring, found that the most r
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