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Difference between RegisterStartupScript and RegisterClientScriptBlock?
...;script language='javascript'>
var lbl = document.getElementById('lblDisplayDate');
lbl.style.color = 'red';
</script>
</form>
<!-- Note this part -->
</body>
</html>
b. When you use RegisterClientScriptBlock, the script is r...
How can I set the WiX installer version to the current build version?
... light.exe will populate the value with the version of the file referenced by the FileId.
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SQL Server: Is it possible to insert into two tables at the same time?
...ver head in high load database systems. The best solution is the one given by "Sergei Zinovyev" which is an addition to the high ranking answer above. Note, the high ranking answer is incorrect without the clause "SET XACT_ABORT ON;".
– Ahmed
Aug 12 at 9:04
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Two single-column indexes vs one two-column index in MySQL?
...nswered Feb 28 '10 at 2:32
Mark ByersMark Byers
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Equivalent of .try() for a hash to avoid “undefined method” errors on nil? [duplicate]
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try is no longer necessary as of Ruby 2.3. @baxang has the best answer, below.
– user513951
Jan 6 '16 at 1:42
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CHECK constraint in MySQL is not working
...e MySQL Reference Manual says:
The CHECK clause is parsed but ignored by all storage engines.
Try a trigger...
mysql> delimiter //
mysql> CREATE TRIGGER trig_sd_check BEFORE INSERT ON Customer
-> FOR EACH ROW
-> BEGIN
-> IF NEW.SD<0 THEN
-> SET NEW.SD...
sql primary key and index
...ptimize a query that uses the primary key and some other specific columns. By creating another index on the primary key column and including some other columns with it, you may reach the desired optimization for a query.
For example you have a table with many columns but you are only querying ID, N...
Flask-SQLAlchemy how to delete all rows in a single table
....filter(Model.id==123).delete()
db.session.commit()
Delete Single Record by Object
record_obj = db.session.query(Model).filter(Model.id==123).first()
db.session.delete(record_obj)
db.session.commit()
https://flask-sqlalchemy.palletsprojects.com/en/2.x/queries/#deleting-records
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Check if element exists in jQuery [duplicate]
How do I check if an element exists if the element is created by .append() method?
$('elemId').length doesn't work for me.
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How to add/update an attribute to an HTML element using JavaScript?
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When I do the following: document.getElementById("nav").setAttribute("class", "active"); it works in the Chrome JS console, but in the actual page it doesn't work..any ideas? By the way, in the actual page I include the .js file before the end of the body scope.
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