I have these queries: SELECT a.Id, a.Name, (SELECT COUNT(Id) FROM b WHERE b.IdTableA = a.Id) AS Num FROM a
Assuming the follo开发者_如何学Cwing query: SELECT ID, COUNT(1) AS NumRecords, SUM(Quantity) AS TotalQty
I have a content items table structured like contentid |message|categoryid|userid|dateadded | etc.. 15foo bar34somedate
I\'m working with SQL Server 2000 and Java. I am creating an application that, among other things, reads the metadata from the tables, recreates them at another server and carry the data.
Is there any built in function in postgresql to get the sum of of开发者_Go百科 a column. Just a simple example
I have tried everything, but without javascript I cannot achieve the bad layout my designer gave to me!!
I have a single table \'EMPLOYEE\'. I need to count the \'emp_no\', so that I have a multiple columns with each aggregate based on different restrictions. Not sure how to write to get the below output
Consider the following data schema: Employee: columns: name: string(255) activeSince: date activeUntil: date
I have an SQ开发者_C百科L server table with one computed column based on 2 other columns on the same table. I have a WCF application in C# that uses EF4 to access the said table.In EF4 the entity corr
In my sql server table, I want to add a computed column that is a hash of other columns in the same table. Below is my table structure.
加载中,请稍侯......