Useful tips for everyday
Does partitioning query performance? Administration of large tables can become easier with partitioning, and it can improve scalability and availability. In addition, a by-product of…
What is datetime format in SQL Server? SQL Server outputs date, time and datetime values in the following formats: yyyy-mm-dd, hh:m:ss. nnnnnnn (n is dependent…
How do I make a replica server? In Windows Admin Center, navigate to Server Manager, and then select one of the servers. Navigate to Roles…
What is user defined database role? SQL Server enables you to create your own custom database roles. Like the fixed roles, user-defined roles can be…
Why am I getting access denied message? Access denied is an error message displayed when you do not have appropriate access rights. If you are…
What is IBM Netezza ODBC driver? IBM® Netezza® supplies an ODBC driver for many supported platforms (32 bit and 64 bit) and for many different…
How do I find the size of a table in Oracle? select segment_name,segment_type, sum(bytes/1024/1024/1024) GB from dba_segments where segment_name=’&Your_Table_Name’ group by segment_name,segment_type; Storage. What is…
How do you check if all columns are null in SQL? How to Test for NULL Values? SELECT column_names. FROM table_name. WHERE column_name IS NULL;…
What is $match in MongoDB? Filters the documents to pass only the documents that match the specified condition(s) to the next pipeline stage. $match takes…
Is a text file a database? The proposed text file is in essence a database. Writing the operations yourself to manipulate it is just reinventing…