I'm using postgres and I'm getting the duplicate key error when updating a row: cursor.execute("UPDATE jiveuser SET userenabled = 0 WHERE userid = %s" % str(userId)) psycopg2.IntegrityError: duplicate key value violates unique constraint "jiveuser_pk" I don't understand how updating a row can cause this error... any help will be much ...
Hi, I am writing some kind of search engine for my web application and i have a problem. I have 2 tables first of is projects table: PROJECTS TABLE id int(11) NO PRI NULL auto_increment employer_id int(11) NO MUL NULL project_title varchar(100) NO MUL ...
Hi all, Does any one know how to create crosstab queries in PostgreSQL? For example I have the following table: Section Status Count A Active 1 A Inactive 2 B Active 4 B Inactive 5 I would like the query to return the following crosstab: Section Active Inactive A 1 ...
This is probably easy, but eludes me. SQL server2005 I want to show top 100 but if there are not 100 only want to show those and not include zero counts in the result SELECT TOP (100) UserName, FullName_Company, FullName, (SELECT COUNT(*) FROM dbo.Member_Ref ...
I am trying to cast a number, I think it is a double, to a decimal using the following: CAST(syr_ep AS decimal(10,3)) As EP which is still returning a double, so how do I achieve this? ...
Hi I've got some problems. I've got this code: Dim infoID As Integer = objCommand1.ExecuteScalar() Dim strSQL2 As String = "insert into feedBackHotel (infoID, feedBackView) values(" + infoID + ",'" + FeedBack + "')" Dim objCommand2 As New SqlCommand(strSQL2, conn) objCommand2.ExecuteNonQuery() The problem here is..the strSQL2 can c...
Does it make a difference if you do count(*) vs count(column-name) as in these two examples? I have a tendency to always write count(*) because it seems to fit better in my mind with the notion of it being an aggregate function, if that makes sense. But I'm not sure if it's technically best as I tend to see example code written withou...
Hi, I want to execute a query like select ID from "xyz_DB"."test" where user in ('a','b') so the corresponding code is like String s="("; for(String user:selUsers){ s+= " ' " + user + " ', "; } s+=")"; Select ID from test where userId in s; The following code is forming the value of s as ('a','b',) i want to remove the comma ...
Please tell me how can we attach SQL Server database (SQL Server 2005) during installation or after installation using c#.net (desktop application). We can create a form to get details of connection string (user id, pass, server name etc..) . please tell me how can we automatically attach database with SQL Server using .net ...
About the system: - There are tutors who create classes and packs - A tags based search approach is being followed.Tag relations are created when new tutors register and when tutors create packs (this makes tutors and packs searcheable). For details please check the section How tags work in this system? below. Following is the concerned...
i want to send SMS using SQL server 2008 express, and using the video tutorial for help. i found an error while testing, i.e. ERROR: Microsoft SQL native client: communication link failure. kindly tell me how to resolve this error. i used the SQL command: "sqlcmd -S np:\127.0.0.1\pipe\MSSQL$SQLEXPRESS\sql\qurey" ...
I don't understand what this order_by clause is doing and whether I need it or not: select c.customerid, c.firstname, c.lastname, i.order_date, i.item, i.price from items_ordered i, customers c where i.customerid = c.customerid group by c.customerid, i.item, i.order_date order by i.order_date desc; This produces this data: 10330 ...
I've written the same query as a subquery and a self-join. Is there any obvious argument for one over the other here? SUBQUERY: SELECT prod_id, prod_name FROM products WHERE vend_id = (SELECT vend_id FROM products WHERE prod_id = ‘DTNTR’); SELF-JOIN: SELECT p1.prod_id, p1.prod_name FROM products p1, products p2 WHERE p1.vend_id = p...
Does this require a UNION? SELECT vend_id, prod_id, prod_price FROM products WHERE prod_price <= 5 UNION SELECT vend_id, prod_id, prod_price FROM products WHERE vend_id IN (1001,1002); Or is it the same if you do it this way? SELECT vend_id, prod_id, prod_price FROM products WHERE prod_price <= 5 OR vend_id IN (1001,1002); ...
Much to annoyance of many developers Microsoft have removed the "Run" and "Run On" commands in Visual Studio 2010: More details at: http://social.msdn.microsoft.com/Forums/en/vstsdb/thread/f374c604-a7eb-496d-a261-9374790cdbf9 Has anyone seen or written a VS2010 Macro or Extension that fills the gaps and replicates this functionality? ...
I am trying to write the following query on postgresql: select name, author_id, count(1), (select count(1) from names as n2 where n2.id = n1.id and t2.author_id = t1.author_id ) from names as n1 group by name, author_id This would certainly work on Microsft SQL Server but it does not at all on p...
Ok here is the thing: I have an old MS SQL 2000 server, and this one will keep running. however for a new website i have a SQL 2008 server. I need 3 tables from the old server (lets call it www.oldserver.com) to be on the new server too. the data on the old server still changes daily. I would like to update the tables immediately w...
I'm trying to figure out the best practice to setup hierarchy data that i take from a database into some contoller that would show the hierachy. Basicly this would look like a normal tree but when you press the items that are under "chapters" you get a link to another page. I have these tables and this is the way they are connected Per...
Hi, i execute the below stored procedure.but it shows the error. The error is 'Incorrect syntax near '.'.i.e error shows in 'xmlFields.Country' please look this stored procedure also and help me thanks, in advance create procedure sp_SuUpdateSUADUsersStatus ( @FinalEMPCode nvarchar(50), @xmlFields NTEXT ) AS DECLARE @CityI...
I have a Product table with the fields Id, Title, Description, Keywords (just comma separated list of keywords). Table is full-text indexed. When I view one product, I do a query and search the full-text catalog for any related products based on the Keywords field. select * from Products where Contains(Products.*, @keywordsFromOnePr...