如何在 SQL 查询中参数化 IN 子句以在 JMETER 中使用

Question

I need to parametrize a SQL Query to use in JMETER such that every time it triggers, a random value is picked from the list of values to be used in IN clause.

Parent Query - Select * from Employee where Emp_Id in ( 3,9,11,12,13) and Dept_Name in('HR',IT','Admin','Audit')

Post the Parameterization when i trigger the Query through JDBC Request the request run for different user needs to have random selection made. Ex: Query 1 should be like - Select * from Employee where Emp_Id in ( 3,9) and Dept_Name in('HR',IT')

Query 2 should be like - Select * from Employee where Emp_Id in ( 11,12,13) and Dept_Name in('HR',IT','Admin')

I am trying to use CSV Data Set Config but not able to achieve the above output.

Answer 1

First of all I would recommend reconsidering your whole approach because tests needs to be repeatable , if you need to check all the possible combinations of the emp and dept IDs - go for pairwise testing , store the generated queries in the CSV file and parameterize the queries using CSV Data Set Config .

If you still want to make the number of arguments absolutely random you can go for the following approach:

1. Add User Defined Variables to your Test Plan and define the following variables there:

    Emp_Id=3,9,11,12,13 Dept_Name=HR,IT,Admin

2. Amend your query to include JMeter's __groovy() function like:

    Select * from Employee where Emp_Id in (${__groovy(def values = vars.get('Emp_Id').split('\,').collect(); values.shuffle(); values.take(org.apache.commons.lang3.RandomUtils.nextInt(1\,values.size())).join('\,'),)}) and Dept_Name in(${__groovy(def values = vars.get('Dept_Name').split('\,').collect{value -> "'" + value + "'"}; values.shuffle(); values.take(org.apache.commons.lang3.RandomUtils.nextInt(1\,values.size())).join('\,'),)})

Demo: