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What is LINQ and what does it do? [closed]
...se various short-hands to avoid dealing with these types directly.
LINQ To SQL - examine the System.Data.Linq namespace. Especially note the DataContext. This is a DataAccess technology built by the C# team. It just works.
LINQ To Entities - examine the System.Data.Objects namespace. Especially note...
How to export query result to csv in Oracle SQL Developer?
I'm using Oracle SQL Developer 3.0. Trying to figure out how to export a query result to a text file (preferably CSV). Right clicking on the query results window doesn't give me any export options.
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python list in sql query as parameter
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Answers so far have been templating the values into a plain SQL string. That's absolutely fine for integers, but if we wanted to do it for strings we get the escaping issue.
Here's a variant using a parameterised query that would work for both:
placeholder= '?' # For SQLite. See DBA...
What is a stored procedure?
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Stored procedures are a batch of SQL statements that can be executed in a couple of ways. Most major DBMs support stored procedures; however, not all do. You will need to verify with your particular DBMS help documentation for specifics. As I am most familia...
SQL query to group by day
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if you're using SQL Server,
dateadd(DAY,0, datediff(day,0, created)) will return the day created
for example, if the sale created on '2009-11-02 06:12:55.000',
dateadd(DAY,0, datediff(day,0, created)) return '2009-11-02 00:00:00.000'
sele...
Rename column SQL Server 2008
I am using SQL Server 2008 and Navicat. I need to rename a column in a table using SQL.
11 Answers
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Select SQL Server database size
how can i query my sql server to only get the size of database?
10 Answers
10
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How do I change db schema to dbo
I imported a bunch of tables from an old sql server (2000) to my 2008 database. All the imported tables are prefixed with my username, for example: jonathan.MovieData . In the table properties it lists jonathan as the db schema. When I write stored procedures I now have to include jonathan....
Populate data table from data reader
...s DataTable
private void ConvertDataReaderToTableManually()
{
SqlConnection conn = null;
try
{
string connString = ConfigurationManager.ConnectionStrings["NorthwindConn"].ConnectionString;
conn = new SqlConnection(connString);
string q...
Use variable with TOP in select statement in SQL Server without making it dynamic [duplicate]
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Yes, in SQL Server 2005 it's possible to use a variable in the top clause.
select top (@top) * from tablename
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