Lock on table while inserting data in SQL Server database
database, locks, sql-server
Solution
Is it default behavior of SQL server to lock table while doing insert?
No. SQL Server by default locks by row - so new rows being inserted are locked - but not the whole table.
This will change if you insert more than 5000 rows in a single transaction. In that case, keeping that many individual locks just becomes too much and SQL Server will do a lock escalation and lock the entire table instead.
Problem
I have question on lock on table in SQL Server while inserting data using multiple processes at a single time into same table. Here are my questions on this, - Is it default behavior of SQL server to lock table while doing insert? - if yes to Q1, then how we can implicitly mention while inserting data. - If I have 4 tables and one table has foreign keys from rest of the 3 tables, on this scenario do I need to use the table lock explicitly or without that I can insert records into those tables? Please help me to understand the same.