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How do I query if a database schema exists
...Name sysname = 'myfunschema';
-- shortest
If EXISTS (SELECT 1 WHERE SCHEMA_ID(@schemaName) IS NOT NULL)
PRINT 'YEA'
ELSE
PRINT 'NOPE'
SELECT DB_NAME() AS dbname WHERE SCHEMA_ID(@schemaName) IS NOT NULL -- nothing returned if not there
IF NOT EXISTS ( SELECT top 1 *
FROM sys.sch...
Cannot change column used in a foreign key constraint
... WRITE;
ALTER TABLE favorite_food
DROP FOREIGN KEY fk_fav_food_person_id,
MODIFY person_id SMALLINT UNSIGNED;
Now you can change you person_id
ALTER TABLE person MODIFY person_id SMALLINT UNSIGNED AUTO_INCREMENT;
recreate foreign key
ALTER TABLE favorite_food
ADD CONSTRAINT fk_fa...
Getting the thread ID from a thread
In C# when debugging threads for example, you can see each thread's ID.
11 Answers
11
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How to start new activity on button click
In an Android application, how do you start a new activity (GUI) when a button in another activity is clicked, and how do you pass data between these two activities?
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SCOPE_IDENTITY() for GUIDs?
Can anyone tell me if there is an equivalent of SCOPE_IDENTITY() when using GUIDs as a primary key in SQL Server?
5 Answe...
Add & delete view from Layout
...
@schwiz how can we reset the view id's in this case.My problem is even after my activity finishes whenever the next view gets added the view id gets incremented.I want the view id to default to 1 when i get back to this activity again.
–...
Is it possible to rename a maven jar-with-dependencies?
...property to give the jar the name you want, and specify that appendAssemblyId should be false to avoid the "jar-with-dependencies" suffix.
The configuration below will output a jar called "test.jar"
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.2-be...
How to get thread id from a thread pool?
....currentThread():
private class MyTask implements Runnable {
public void run() {
long threadId = Thread.currentThread().getId();
logger.debug("Thread # " + threadId + " is doing this task");
}
}
sha...
How to check if a function exists on a SQL database
...IF EXISTS (SELECT *
FROM sys.objects
WHERE object_id = OBJECT_ID(N'[dbo].[foo]')
AND type IN ( N'FN', N'IF', N'TF', N'FS', N'FT' ))
DROP FUNCTION [dbo].[foo]
GO
This approach to deploying changes means that you need to recreate all permissions on the ...
How can I use optional parameters in a T-SQL stored procedure?
...cedure that will handle this? Let's say I have a table with four fields: ID, FirstName, LastName and Title. I could do something like this:
...