Useful tips for everyday
How do you assign a query result to a variable in SQL? To assign a value to a variable, use the SET statement. This is…
Should I filter before join? The query optimizer is often smart enough to filter early. SQL is logical – in the where does not mean…
What is Wi-Fi attack? A wireless attack is a malicious action against wireless system information or wireless networks; examples can be denial of service attacks,…
Is there way to detect multiple tabs or windows of the same session? I am new in JavaScript and php so I have a question…
When to use textwrap for wrapping and filling? If you’re just wrapping or filling one or two text strings, the convenience functions should be good…
How do I fix my monitor randomly shuts off? How to: Fix: Monitor randomly shuts off Step 1: Update the graphics card driver. Step 2:…
How do you make a drawing transparent? Make a shape transparent Select Insert > Shapes. Select a shape from the drop-down gallery and then draw…
Why is graph theory needed? Graph Theory is ultimately the study of relationships. Given a set of nodes & connections, which can abstract anything from…
Does order matter in non-clustered index? The column ordering in a composite Non-Clustered Index matters – when you have to perform Range Scans! Does the…
How do you delete a readout on scratch? Use the delete button (the scissors on the top of the Scratch program) on the Stage monitor…