Question : I’m using MySQL Workbench. I know that an additional table is needed to define a many to many […]
What kind of SSD to speed up querying a lot of data?
Question : For research purposes I am using a big MariaDB database (~500 GB) with 20 Tables (engine: myISAM) and […]
Get The Latest values For Same ID/Duplicate ID
Question : —————-I Want To Show Only Red marked product_id,on_hand,created_at, In this image Product_id have same Duplicate id but i […]
MyISAM around 5x slower than InnoDB
Question : I thought, MyISAM is for simple tables and selects due to its architecture faster than InnoDB. Therefore I […]
Why am I getting “Snapshot isolation transaction aborted due to update conflict”?
Question : We have two tables Parent (Id int identity, Date datetime, Name nvarchar) Child (Id int identity, ParentId int, […]
What is the relation between Tablespaces, .frm & .ibd files and database pages in MySQL?
Question : I looked in the documentation but there was not a clear answer regarding their relation, can someone give […]
Clustered index additional storage
Question : Reading some books I found that clustered index not require additional disk space for storing index data, because […]
Compare value from xml node that contains decimal
Question : I need to compare the values of two different XML nodes for a record stored on SQL Server […]
Is there any ways to get the row count of joined tables?
Question : Is there any methods to get the row count of the table which is related to the specified […]
How to handle bad query plan caused by exact equality on range type?
Question : I’m performing an update where I require an exact equality on a tstzrange variable. ~1M rows are modified, […]