I don’t think there is any need of introduction. Let’s jump to the code section. We coders understand with code more. Let’s understand the concept then you don’t need to remember any definition.
This is the recordset against which I am running queries.
| Id | FirstName | LastName |
|---|---|---|
| 1 | John | Doe |
| 2 | Ravindra | Devrani |
| 3 | Mohan | Singh |
| 20 | Mahesh | Soni |
| 21 | John | Snow |
First and foremost let’s say we need a record with LastName=”Doe”.
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