Useful tips for everyday
What columns should be included in a non clustered index? Included columns in a non-clustered index can only be the non-key columns. In the included…
How much space does MongoDB take? Because MongoDB uses a journal file size limit of 100 MB, WiredTiger creates a new journal file approximately every…
Is it safe to give username password? Your username and password authenticate your identity – in other words, proving that you’re you. By keeping your…
Which is not a subquery operator? Which of the following operators cannot be used in a sub-query? Answer: A. Single-row operators include =, >, <,…
Which of the following error message indicates that the package Cannot run in SSIS? Which of the following error message indicates that the package cannot…
How do I search for multiple rows in Excel? Here the steps to select multiple contiguous rows using the SHIFT key: Select the row header…
What is a composite primary key? A primary key having two or more attributes is called composite key. It is a combination of two or…
What do I need to know about SQL server backups? When backing up a database and setting the backup type to Full, SQL Server will…
How to use an index in MySQL Query? SELECT select_list FROM table_name USE INDEX (index_list) WHERE condition; Code language: SQL (Structured Query Language) (sql) In…
Is the relation does not exist in PostgreSQL? Lets say we have database name as students and schema name as studentinformation then to use all…