Useful tips for everyday
How to grant permission for schema in PostgreSQL? CREATE ROLE common NOSUPERUSER NOCREATEDB NOCREATEROLE INHERIT; GRANT USAGE ON SCHEMA portal TO common; GRANT ALL ON…
How do I import a csv file into MySQL Workbench? You’ll see a “Open File” Dialog Box. Navigate to your CSV file and click Open…
What cause index corruption? KB2878968 – FIX: Nonclustered index corruption may occur when you run a complex UPDATE statement together with a NOLOCK hint against…
How to enable TDE on SQL Server using EKM? To enable TDE using EKM Copy the files supplied by the EKM provider to an appropriate…
How do I fix error 1064 42000? The ERROR 1064 (42000) mainly occurs when the syntax isn’t set correctly i.e. error in applying the backtick…
What is Oracle execution plan? A statement’s execution plan is the sequence of operations Oracle performs to run the statement. The row source tree is…
How do I read a csv file in PySpark RDD? Load CSV file into RDD val rddFromFile = spark. sparkContext. val rdd = rddFromFile. map(f=>{…
How do I increase RAM in R studio? Use memory. limit() . You can increase the default using this command, memory. limit(size=2500) , where the…
What is polynomial regression used for? Polynomial regression fits a nonlinear relationship between the value of x and the corresponding conditional mean of y, denoted…
What does it mean when normalized RMSE 1? Root Mean Square Error The Root Mean Square Error (RMSE) A value of zero would indicate a…