sql

Edit TOP Row in SQL Server Management Studio

When I right click on the table, I get the option to Edit TOP 200 rows. I went to option and changed this to TOP 1 row. Now when i open that row, that is not the latest but the last row of my database. How can I Edit the latest row inserted in my table? ...

rails include with options

Is it possible to limit an AR :include to say only pull in one record... Item.find(:all, :include => [ :external_ratings, :photos => LIMIT 1 ]) I have a list of items and each item has between 5 and 15 photos. I want to load a photo id into memory, but i don't need all of them, I just want to preview the first one. Is there a ...

Comparing two dates in mysql

Hi I have a mysql database table with a column called task_end_date and task_name. I want to select all the task_name from the table where the current date has passed task_end_date. How would i do that in mysql using an sql query. Thanks ...

Update an NText Column

In my NText column, I have some data in between <script type='text/javascript'> </script> tags. I want to replace all the data between <script type='text/javascript'> </script> tag with this data below: <!--//<![CDATA[ var m3_u = (location.protocol=='https:'?'https://d1.openx.org/ajs.php':'http://d1.openx.org/ajs.php'); var m3_r ...

How to read data for nested classes?

Hi all, I'm sorry if my question isn't clear. I have a class contain some properties and one of them is "Parent" which the same type of this class. when i read data from Database i set the suitable value for each property. But how could i put the "Parent" property when i read it from database as "ParentID". If it's not clear I'll put...

Searching in Nvarchar(max)

I am searching for the following string in a nvarchar(max) column <script src="http://d1.openx.org/ajs.php?zoneid=75288&amp;amp;source However when I use CharIndex and try to find, I get 0 How can I search for that string? I am using SQL 2008 ...

Convert Sub Query to a Join

Hi is it possible to convert this sub query to a join ? SELECT staff_no FROM doctor WHERE NOT EXISTS (SELECT * FROM patient WHERE staff_no = consultant_no); ...

Vertical and Horizontal Tables

Can anyone tell me what's the performance gain when using a vertical table for searching? What's faster, a vertical or an horizontal table? ...

SQL Server - SELECT FROM stored procedure

Say I have a stored procedure that returns rows: CREATE PROCEDURE MyProc AS BEGIN SELECT * FROM MyTable END Of course my actual procedure is a little more complicated, being why a sproc is necessary. Is it possible to select the output from calling this procedure? Something like: SELECT * FROM (EXEC MyProc) AS TEMP The reason...

Return all Fields and Distinct Rows

Whats the best way to do this, when looking for distinct rows? SELECT DISTINCT name, address FROM table; I still want to return all fields, ie address1, city etc but not include them in the DISTINCT row check. ...

An SqlParameter with ParameterName is not contained?

I have a problem with something I have done many times but this time it just doesn't work. This is what what I am trying to do (in Visual Studio 2003 and VB.NET) Earlier in the code: Private SaveCustomerInformationCommand As System.Data.SqlClient.SqlCommand Then this in a setup process: SaveCustomerInformationCommand = New System.D...

SQL date subtraction

In SQL, I'd like to list all funds whose anniversary is due this year in 2 months time. What is the syntax? ...

How to insert a foreign key using a Sub-SELECT in SQL Server

I've just started working with SQL Server for the first time and I'm having trouble populating test data. I have two tables where one has a foreign key to the other and I would like to be able to insert a new record using the following SQL: insert into Employee ( EmployeeName, DepartmentId ) values ( "John Doe", (select ...

Multiple yet mutually exclusive foreign keys - is this the way to go?

I have three tables: Users, Companies and Websites. Users and companies have websites, and thus each user record has a foreign key into the Websites table. Also, each company record has a foreign key into the Websites table. Now I want to include foreign keys in the Websites table back into their respective "parent" records. How do I d...

List all sequences in a Postgres db 8.1 with SQL

I'm converting a db from postgres to mysql. Since i cannot find a tool that does the trick itself, i'm going to convert all postgres sequences to autoincrement ids in mysql with autoincrement value. So, how can i list all sequences in a Postgres DB (8.1 version) with information about the table in which it's used, the next value etc w...

Search based on matched criteria

I'm using the following query to return all records where at least 2 conditions match (provided by Quassnoi). SELECT * FROM ( SELECT ContentID FROM ( SELECT ContentID FROM VWTenantPropertiesResults WHERE ContentStreet = 'Holderness Road' UNION ...

SQL query: self join on subquery necessitates creating a separate (non-temporary) table?

I'm working on what is for me a complicated query, and I've managed to get the information I need, but seem to be forced to create a table to accomplish it. I'm using MySQL, so I can't use WITH, I can't use a view because my SELECT contains a subquery in the FROM clause, and I can't use a temporary table because I need to self-join. Am I...

Getting VAT amount in computed column

I've created a view, using the following select statement. As you can see, i've aliased a lot of the columns to make it far more friendly. I need to return a column on the end of this that is "GrandTotal" and is basically SubTotal + VAT (this VAT column is displayed as a percentage, so need to add % to this) Thanks for your help. SEL...

MySQL calculate an complicated expression

Hi i have 2 fields in database and i would like to find the difference of them in percentage. So mathematical the formula should be ABSOLUTE((field1-field2)/(MAXIMUM(field1, field2))) the problem is I dont know how to ask for maximum of 2 numbers. Since MAX in sql returns the max of column. ...

MySQL Performance inquiry

I have moved my drupal site from one mysql server to another one. Old Machine has 1 cpu, 1GB Ram New Machine has 4 cpu, 4GB Ram. I have a huge negative difference in perfomance on this query ( 2 mins vs 2 secs ) select distinct c.client from client_table c LEFT JOIN reps r on ( c.client = r.client ) where r.user_id is...