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How do you change the datatype of a column in SQL Server?
... to change a column from a varchar(50) to a nvarchar(200) . What is the SQL command to alter this table?
8 Answers
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Convert java.time.LocalDate into java.util.Date type
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You can use java.sql.Date.valueOf() method as:
Date date = java.sql.Date.valueOf(localDate);
No need to add time and time zone info here because they are taken implicitly.
See LocalDate to java.util.Date and vice versa simpliest conversion...
How to report an error from a SQL Server user-defined function
I'm writing a user-defined function in SQL Server 2008. I know that functions cannot raise errors in the usual way - if you try to include the RAISERROR statement SQL returns:
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How do you create a yes/no boolean field in SQL server?
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The equivalent is a BIT field.
In SQL you use 0 and 1 to set a bit field (just as a yes/no field in Access). In Management Studio it displays as a false/true value (at least in recent versions).
When accessing the database through ASP.NET it will expose the ...
Finding duplicate rows in SQL Server
I have a SQL Server database of organizations, and there are many duplicate rows. I want to run a select statement to grab all of these and the amount of dupes, but also return the ids that are associated with each organization.
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MySQL, Check if a column exists in a table with SQL
I am trying to write a query that will check if a specific table in MySQL has a specific column, and if not — create it. Otherwise do nothing. This is really an easy procedure in any enterprise-class database, yet MySQL seems to be an exception.
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Implement paging (skip / take) functionality with this query
... trying to understand a little bit about how to implement custom paging in SQL, for instance reading articles like this one .
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Storing images in SQL Server?
...small demo site and on it I am storing images within a image column on the sql server. A few questions I have are...
8 Answ...
SQL JOIN vs IN performance?
...does it depend on what database server you are running? (FYI I am using MSSQL)
7 Answers
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Random row from Linq to Sql
What is the best (and fastest) way to retrieve a random row using Linq to SQL when I have a condition, e.g. some field must be true?
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