Useful tips for everyday
Is Autovacuum blocked? Autovacuum does take a lock on the table, but it is a weak lock which does not interfere with normal operations (SELECT,…
What is default SQL Server isolation level? The default isolation level for all SQL Server databases is Read Committed, and your only option is to…
What is the difference between data dictionary and data schema? The definition of schema is logical structure of data in database. The schema contains name…
What are the types of indexes in PostgreSQL? PostgreSQL provides several index types: B-tree, Hash, GiST, SP-GiST, GIN and BRIN. Each index type uses a…
How do I get Active Directory users in SQL Server? Querying Active Directory Through SQL Server Linked Server: adsi (or whatever you want to call…
Why is transaction log so large? Therefore the most common reason I have experienced for a transaction log file to have grown extremely large is…
Can Snowflake be deployed on Prem? Snowflake cannot be run on private cloud infrastructures (on-premises or hosted). How do I transfer data from SQL Server…
What method does Scikit-learn use for classifying operational? Scikit-learn is a library that provides a variety of both supervised and unsupervised machine learning techniques. Supervised…
How does machine learning use image classification? How Image Classification Works. Image classification is a supervised learning problem: define a set of target classes (objects…
When should I split my dataset? The train-test split procedure is appropriate when you have a very large dataset, a costly model to train, or…