Using the information provided by the list vtables and list vfields <vtable name> commands, you can run a query to extract information that meets the criteria you specify. Any query you run should be structured as follows:
select <vfields you want to search for, separated by a comma and a space> from <vtables you want to search in, separated by a comma and a space> where <criteria> ’<criteria operator>’;
For example, say you want to search the nodes/node.ID field in the nodes/node-connector table and find every instance of the Hardware-Address object that contains BA in its text string. To do so, you would enter the following query: Select nodes/node.ID from nodes/node-connector where Hardware-Address like ’%BA%’;
The following criteria operators are supported:
Table 3.2. Supported XSQL Query Criteria Operators
Criteria Operators | Description |
= | Lists results that equal the value you specify. |
!= | Lists results that do not equal the value you specify. |
like | Lists results that contain the substring you specify. For example, if you specify like %BC%, every string that contains that particular substring is displayed. |
< | Lists results that are less than the value you specify. |
> | Lists results that are more than the value you specify. |
and | Lists results that match both values you specify. |
or | Lists results that match either of the two values you specify. |
>= | Lists results that are more than or equal to the value you specify. |
⇐ | Lists results that are less than or equal to the value you specify. |
is null | Lists results for which no value is assigned. |
not null | Lists results for which any value is assigned. |
skip | Use this operator to list matching results from a child node, even if its parent node does not meet the specified criteria. See the following example for more information. |
