== (equals) operator
Applies to: ✅ Azure Data Explorer ✅ Azure Monitor ✅ Microsoft Sentinel
Filters a record set for data matching a case-sensitive string.
The following table provides a comparison of the == operators:
| Operator | Description | Case-Sensitive | Example (yields true) |
|---|---|---|---|
== |
Equals | Yes | "aBc" == "aBc" |
!= |
Not equals | Yes | "abc" != "ABC" |
=~ |
Equals | No | "abc" =~ "ABC" |
!~ |
Not equals | No | "aBc" !~ "xyz" |
For more information about other operators and to determine which operator is most appropriate for your query, see datatype string operators.
Performance tips
Note
Performance depends on the type of search and the structure of the data. For best practices, see Query best practices.
Syntax
T | where col == (expression, ... )
Learn more about syntax conventions.
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
| T | string |
✔️ | The tabular input whose records are to be filtered. |
| col | string |
✔️ | The column to filter. |
| expression | string |
✔️ | The expression used to filter. |
Returns
Rows in T for which the predicate is true.
Example
StormEvents
| where State == "kansas"
| count
| Count |
|---|
| 0 |
StormEvents
| where State == "KANSAS"
| count
| Count |
|---|
| 3,166 |