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Description

You can apply this operation either as a Filter or Create column operation:

Filter

Retrieves those events where at least one of the given Boolean column values is true.

Create column

Creates a Boolean column that returns true only if and only if one of the given arguments are true.

How does it work in the search window?

Select Filter / Create column in the search window toolbar, then select the Or operation. This operation requires at least two Operand arguments, but you can add more as needed. 

Argument

Data type

Operand mandatory

boolean

Operand mandatory

boolean

If you use the Create column operation, the data type of the values in the new column is boolean (true or false).

Example

In the demo.ecommerce.data table, we want to display only those events where either the bytes transferred are greater than 1000 or the time taken to send them is greater than 200 (or both). To do it, we will apply a Filter using the Or operation but first, we need to create the required Boolean columns.

Step 1: Create the dedicated columns with Boolean values

We need two new columns. One for the first condition (bytesTransferred>1000), and one for the second condition (timeTaken>200). Here is how we define these columns, using the Greater than (gt, >) operation.

Once created, we will have two Boolean columns containing a true or false value for each row.

Step 2: Apply the filter using the Or operation

Select Filter on the query toolbar, then select Or as the operator. Now select the columns that you created as arguments:  

  • Operand - bytestransferred>1000 column

  • Operand - timetaken>200 column

Click Filter data. The table displays only those rows where either the timetaken>200 or the bytestransferred>1000 value (or both) is true. 

Click Create column and follow the same steps to add a new Boolean column that shows true when either the timetaken>200 value or the bytestransferred>1000 value (or both) is true.

How does it work in LINQ?

Use the operator where...  to apply the Filter operation and select... as...  to apply the Create column operation. This is the syntax for the Or operation:

  • boolean1 or boolean2 or ...

Examples

You can copy the following LINQ script and try the above example on the demo.ecommerce.data table:

from demo.ecommerce.data
  select bytesTransferred > 1000 as `bytesTransferred>1000`,
    timeTaken > 200 as `timeTaken>200`
      where `bytesTransferred>1000` or `timeTaken>200`

And this is the same example using the Create column operation:

from demo.ecommerce.data
  select timeTaken > 200 as `timeTaken>200`,
    bytesTransferred > 1000 as `bytesTransferred>1000`,
    `timeTaken>200` or `bytesTransferred>1000` as `time>200&bytes>1000`
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