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MySQL WHERE Clause

MySQL WHERE Clause is used with SELECT, INSERT, UPDATE and DELETE clause to filter the results. It specifies a specific position where you have to do the operation.

Syntax:

Parameter:

conditions: It specifies the conditions that must be fulfilled for records to be selected.

MySQL WHERE Clause with single condition

Let's take an example to retrieve data from a table "officers".

Table structure:

MySQL where clause 1

Execute this query:

Output:

MySQL where clause 2

MySQL WHERE Clause with AND condition

In this example, we are retrieving data from the table "officers" with AND condition.

Execute the following query:

Output:

MySQL where clause 3

WHERE Clause with OR condition

Execute the following query:

Output:

MySQL where clause 4

MySQL WHERE Clause with combination of AND & OR conditions

You can also use the AND & OR conditions altogether with the WHERE clause.

See this example:

Execute the following query:

Output:

MySQL where clause 5



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