Useful tips for everyday
What is Oracle IOPS? IOPS is the standard measure of input and output (I/O) operations per second on a storage device. It includes both read…
What are MongoDB commands? Basic commands for mongoDB show dbs. use DATABASE_NAME. db. db.dropDatabase() db.createCollection(name) Show collections. db.COLLECTION_NAME.drop() >db.COLLECTION_NAME.find() Which package is needed for MongoDB?…
How do I make a column auto increment in mysql? Syntax. In MySQL, the syntax to change the starting value for an AUTO_INCREMENT column using…
Why is PostgreSQL the fastest growing database in the world? This is the case even as more and more organizations and developers embrace PostgreSQL, so…
How do I optimize a select COUNT query? Optimize MySQL COUNT (*) query SELECT COUNT(*) from table1 WHERE field1 IN (‘val1′,’val2’) OR field2 IN (‘val3′,’val4’);…
What do I need to connect to SQL Server analysis services? Analysis Services does not let you specify a user name and password on the…
How do I start Sybase database in Linux? Starting the SYBASE DB in Linux for starting you need to go install folder, that install folder…
How to check if a SQL query will return results? For performance comparison, just ensure you are testing fairly by clearing down the data and…
What is a recursive relationship example? When there is a relationship between two entities of the same type, it is known as a recursive relationship.…
What does GROUP BY do in Postgres? The PostgreSQL GROUP BY clause is used to divide rows returned by SELECT statement into different groups. The…