Use Comparison Operators
Comparison operators are conditions you specify to establish a relationship between a field and its value. Fields without values are considered to be null.
The following table lists the supported comparison operators and provides a brief description of each.
| Comparison Operator | Description |
|---|---|
< |
If you use this operator in your query, then all log entries with a value, for the corresponding field, of less than the specified value are returned. |
<= |
If you use this operator in your query, then all log entries with a value, for the corresponding field, of less than or equal to the specified value are returned. |
> |
If you use this operator in your query, then all log entries with a value, for the corresponding field, of greater than the specified value are returned. |
>= |
If you use this operator in your query, then all log entries with a value, for the corresponding field, of greater than or equal to the specified value are returned. |
= |
If you specify this operator in your query, then all log entries with a value, for the corresponding field, of equal to the specified value are returned. |
!= |
If you specify this operator in your query, then all log entries with a value, for the corresponding field, of not equal to the specified value are returned. |
Use these operators to find logs with fields having specific values. For example, specify Severity=’ERROR’ to search through the available logs where the value of the field Severity is ERROR. Similarly, Severity!=NULL returns all logs where the value of the Severity field is not null (in other words, where severity has been specified).
Note:
The value to the right of the comparison operator must be specified within quotes if the value is not numeric orNULL.