大约有 47,000 项符合查询结果(耗时:0.0272秒) [XML]

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Check if a temporary table exists and delete if it exists before creating a temporary table

...me in SQL Server 2005, with the extra "foo" column appearing in the second select result: IF OBJECT_ID('tempdb..#Results') IS NOT NULL DROP TABLE #Results GO CREATE TABLE #Results ( Company CHAR(3), StepId TINYINT, FieldId TINYINT ) GO select company, stepid, fieldid from #Results GO ALTER TABLE #R...
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How can I search (case-insensitive) in a column using LIKE wildcard?

... SELECT * FROM trees WHERE trees.`title` COLLATE UTF8_GENERAL_CI LIKE '%elm%' Actually, if you add COLLATE UTF8_GENERAL_CI to your column's definition, you can just omit all these tricks: it will work automatically. ...
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How to list active / open connections in Oracle?

... Error starting at line 1 in command: select * from FROM v$session Error at Command Line:1 Column:14 Error report: SQL Error: ORA-00903: invalid table name 00903. 00000 - "invalid table name" *Cause: *Action: – pistacchio ...
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SQL Server query - Selecting COUNT(*) with DISTINCT

... Count all the DISTINCT program names by program type and push number SELECT COUNT(DISTINCT program_name) AS Count, program_type AS [Type] FROM cm_production WHERE push_number=@push_number GROUP BY program_type DISTINCT COUNT(*) will return a row for each unique count. What you want is C...
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Get day of week in SQL Server 2005/2008

... Use DATENAME or DATEPART: SELECT DATENAME(dw,GETDATE()) -- Friday SELECT DATEPART(dw,GETDATE()) -- 6 share | improve this answer | ...
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How to copy data from one table to another new table in MySQL?

...hat you want: INSERT INTO table2 (st_id,uid,changed,status,assign_status) SELECT st_id,from_uid,now(),'Pending','Assigned' FROM table1 If you want to include all rows from table1. Otherwise you can add a WHERE statement to the end if you want to add only a subset of table1. I hope this helps. ...
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How can I remove or replace SVG content?

... Here is the solution: d3.select("svg").remove(); This is a remove function provided by D3.js. share | improve this answer | ...
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MySQL: Quick breakdown of the types of joins [duplicate]

...es END EDIT In a nutshell, the comma separated example you gave of SELECT * FROM a, b WHERE b.id = a.beeId AND ... is selecting every record from tables a and b with the commas separating the tables, this can be used also in columns like SELECT a.beeName,b.* FROM a, b WHERE b.id = a.beeId...
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how do I query sql for a latest record date for each user

... select t.username, t.date, t.value from MyTable t inner join ( select username, max(date) as MaxDate from MyTable group by username ) tm on t.username = tm.username and t.date = tm.MaxDate ...
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How can I add an item to a SelectList in ASP.net MVC

Basically I am looking to insert an item at the beginning of a SelectList with the default value of 0 and the Text Value of " -- Select One --" ...