优化 SQL 服务器存储过程

Question

I am using a stored procedure in SQL Server to retrieve transactions from a Transaction table with a huge amount of data.

I want to filter the transactions with transactionids, merchantids, processorids, gatewayids etc and etc.

Each parameter is passed to the stored procedure as comma-separated values of type varchar , for example ('100,101,200,205') .

I want to filter transactions with these parameters. Now I'm using for example inner joining the transaction table like this.

INNER JOIN
    STRING_SPLIT(@TransactionIds, ',') AS TMT ON  TMT.value = CONVERT(varchar(50), TXN.TransactionId)

This is taking a lot of time. Can you suggest some optimised methods?

Answer 1

Take separate parameter for every input field also you can apply index to the parameter which you are using during joins or in where conditions

• Applying index will defiantly improves your query performance