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How do you check if a certain index exists in a table?
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You can do it using a straight forward select like this:
SELECT *
FROM sys.indexes
WHERE name='YourIndexName' AND object_id = OBJECT_ID('Schema.YourTableName')
share
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How do I directly modify a Google Chrome Extension File? (.CRX)
... remove the _metadata folder.
From chrome://extensions in Developer mode select Load unpacked extension... and select your copied extension folder, if it contains a subfolder this is named by the version, select this version folder where there is a manifest file, this file is necessary for Chrome....
MySQL select with CONCAT condition
...available within the query itself.
You can either repeat the expression:
SELECT neededfield, CONCAT(firstname, ' ', lastname) as firstlast
FROM users
WHERE CONCAT(firstname, ' ', lastname) = "Bob Michael Jones"
or wrap the query
SELECT * FROM (
SELECT neededfield, CONCAT(firstname, ' ', last...
Connect to Amazon EC2 file directory using Filezilla and SFTP
...SFTP, Click "Add key file”
Browse to the location of your .pem file and select it.
A message box will appear asking your permission to convert the file into ppk format. Click Yes, then give the file a name and store it somewhere.
If the new file is shown in the list of Keyfiles, then continue t...
Why does UITableViewCell remain highlighted?
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In your didSelectRowAtIndexPath you need to call deselectRowAtIndexPath to deselect the cell.
So whatever else you are doing in didSelectRowAtIndexPath you just have it call deselectRowAtIndexPath as well.
- (void)tableView:(UITableVi...
“Conversion to Dalvik format failed with error 1” on external JAR
...n my case Android 1.5). click OK. Go to Project » Clean » Clean projects selected below » select your project and click OK. That should work.
It is also possible that you have a JAR file located somewhere in your project folders (I had copied the Admob JAR file into my src folder) and THEN added...
Why does Eclipse complain about @Override on interface methods?
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Project specific settings may be enabled. Select your project Project > Properties > Java Compiler, uncheck the Enable project specific settings or change Jdk 1.6 and above not forgetting the corresponding JRE.
Incase it does not work, remove your project from...
Build project into a JAR automatically in Eclipse
...con on build.xml.
Step 2
Right-click on the root node in the project.
- Select Properties
- Select Builders
- Select New
- Select Ant Build
- In the Main tab, complete the path to the build.xml file in the bin folder.
Check the Output
The Eclipse output window (named Console) should show...
Horizontal ListView in Android?
...he ListView horizontally? I have done this using a gallery view, but the selected item comes to the center of the screen automatically. I don't want the selected item at the same spot I clicked. How can I rectify this problem? My idea was to set the ListView with a horizontal scroll. Share your ...
How to select the row with the maximum value in each group
In a dataset with multiple observations for each subject I want to take a subset with only the maximum data value for each record. For example, with a following dataset:
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