Useful tips for everyday
How do I open a schematic diagram? To open several schematic diagrams, hold down the SHIFT keyboard key and click each desired schematic diagram item.…
Can we use Substr in GROUP BY clause? If a scalar function has been applied to a column in the SELECT list, the syntax doesn’t…
How do you reset the query tool in pgAdmin 4? RESET Layout : Open the browser console. Paste this JavaScrips code: pgAdmin. Settings. show() This…
How does Atlas Connect to Mongo shell? Click Connect. Click Database in the top-left corner of Atlas. In the Database Deployments view, click Connect for…
Does foreign key Add index? No, there is no implicit index on foreign key fields, otherwise why would Microsoft say “Creating an index on a…
Is Postgres 9.6 still supported? After its five year anniversary, a major version will have one last minor release containing any fixes and will be…
What is fetch next from? If FETCH NEXT is the first fetch against a cursor, it returns the first row in the result set. NEXT…
How are B trees stored on disk? B-Trees are a variation on binary search trees that allow quick searching in files on disk. Instead of…
What is a junction table in database? A junction table contains the primary key columns of the two tables you want to relate. You then…
How to run Windows PowerShell steps in SQL Server Agent? In the Type list, choose Operating system (CmdExec). In Run as list, select the proxy…