Does a refresh fast on commit union all materialized view (in Oracle) copy all the underlying data, or does it just have a reference to it?
I\'m using SQL Server 2005. And I\'m using ROUND T-SQL function to round a decimal column value. But it seems that the rounded value is incorrect.
I have a column [Cash] nvarchar(50) that has data that will later be converted to decimal(9,3) during an import process,some of the data is consistent with normal looking numeric valu开发者_如何学编程
Using the following query select开发者_如何学运维 * from table1 left join table2 on table1.name = table2.name
How can I optimize this SQL below? this query takes forever to run :( SELECT DISTINCT CONNECT_BY_ROOT a.dst_ID_key AS root_ID_key, a.src_ID_key
Extending on this question: hotel reservation system SQL query: identify when one specific room is available
I just observed that my query: SELECT X.A, X.B, X.GroupName FROM TableA X INNER JOIN TableB Y -- Huge table
I\'m currently using an html embed tag to display a pdf file that is saved on the local server.开发者_StackOverflowIs there a wayo to display a pdf file on my page without having to save it to the loc
I am making an alert tool using web sql. I want to selects all开发者_JAVA百科 events that occur in a specific day. when I insert the event I insert the date as a date object with this format \"2011-1
I have a Product and Creator table, I also have a table called CreatorProduct which joins the creator with the product. A product can have many creators and a creator can have many products. What I wa
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