大约有 40,000 项符合查询结果(耗时:0.0286秒) [XML]

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jQuery Validate Required Select

I am trying to validate html select element using jQuery Validate plugin. I set "required" rule to true but it always passes validation because zero index is chosed by default. Is there any way to define empty value that is used by required rule? ...
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SQL variable to hold list of integers

...e @listOfIDs table (id int); insert @listOfIDs(id) values(1),(2),(3); select * from TabA where TabA.ID in (select id from @listOfIDs) or declare @listOfIDs varchar(1000); SET @listOfIDs = ',1,2,3,'; --in this solution need put coma on begin and end select * from TabA where charindex(',' + C...
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MySQL DROP all tables, ignoring foreign keys

... these tweaks: Limit the generated drops to your database like this: SELECT concat('DROP TABLE IF EXISTS `', table_name, '`;') FROM information_schema.tables WHERE table_schema = 'MyDatabaseName'; Note 1: This does not execute the DROP statements, it just gives you a list of them. You will n...
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Difference between Select and ConvertAll in C#

... Select is a LINQ extension method and works on all IEnumerable<T> objects whereas ConvertAll is implemented only by List<T>. The ConvertAll method exists since .NET 2.0 whereas LINQ was introduced with 3.5. You s...
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Which are more performant, CTE or temporary tables?

...(A INT IDENTITY PRIMARY KEY, B INT , F CHAR(8000) NULL); INSERT INTO T(B) SELECT TOP (1000000) 0 + CAST(NEWID() AS BINARY(4)) FROM master..spt_values v1, master..spt_values v2; Example 1 WITH CTE1 AS ( SELECT A, ABS(B) AS Abs_B, F FROM T ) SELECT * FROM CTE1 WHERE A = 780 ...
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How to show all privileges from a user in oracle?

... You can try these below views. SELECT * FROM USER_SYS_PRIVS; SELECT * FROM USER_TAB_PRIVS; SELECT * FROM USER_ROLE_PRIVS; DBAs and other power users can find the privileges granted to other users with the DBA_ versions of these same views. They are cov...
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MySQL, Check if a column exists in a table with SQL

...query and I think it needs a small alteration to get it working properly. SELECT * FROM information_schema.COLUMNS WHERE TABLE_SCHEMA = 'db_name' AND TABLE_NAME = 'table_name' AND COLUMN_NAME = 'column_name' That worked for me. Thanks! ...
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How do you do a limit query in JPQL or HQL?

... // SQL: SELECT * FROM table LIMIT start, maxRows; Query q = session.createQuery("FROM table"); q.setFirstResult(start); q.setMaxResults(maxRows); share ...
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SQL: capitalize first letter only [duplicate]

...t only for displaying and do not need the actual data in table to change: SELECT UPPER(LEFT(word,1))+LOWER(SUBSTRING(word,2,LEN(word))) FROM [yourtable] Hope this helps. EDIT: I realised about the '-' so here is my attempt to solve this problem in a function. CREATE FUNCTION [dbo].[CapitalizeFi...
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Difference between left join and right join in SQL Server [duplicate]

... Select * from Table1 left join Table2 ... and Select * from Table2 right join Table1 ... are indeed completely interchangeable. Try however Table2 left join Table1 (or its identical pair, Table1 right join Table2) to see...