4D v14.3
Get last query plan
- 4D Language Reference
-
- Queries
-
- DESCRIBE QUERY EXECUTION
- Find in field
- Get last query path
- Get last query plan
- GET QUERY DESTINATION
- Get query limit
- ORDER BY
- ORDER BY FORMULA
- QUERY
- QUERY BY EXAMPLE
- QUERY BY FORMULA
- QUERY SELECTION
- QUERY SELECTION BY FORMULA
- QUERY SELECTION WITH ARRAY
- QUERY WITH ARRAY
- SET QUERY AND LOCK
- SET QUERY DESTINATION
- SET QUERY LIMIT
Get last query plan
| Get last query plan ( descFormat ) -> Function result | ||||||||
| Parameter | Type | Description | ||||||
| descFormat | Longint |
|
Description format (Text or XML) | |||||
| Function result | String |
|
Description of last executed query plan | |||||
The Get last query plan command returns the detailed internal description of the query plan for the last query carried out on the data. For more information about query descriptions, please refer to the documentation of the DESCRIBE QUERY EXECUTION command.
This description is returned in Text or XML format depending on the value passed in the descFormat parameter. You can pass one of the following constants, found in the “Queries” theme:
| Constant | Type | Value |
| Description in text format | Longint | 0 |
| Description in XML format | Longint | 1 |
This command returns a significant value if the DESCRIBE QUERY EXECUTION command has been executed during the session.
The description of the last query plan can be compared to the description of the actual path of the last query (obtained using the Get last query path command) for optimization purposes.
Product: 4D
Theme: Queries
Number:
1046
Created: 4D v11 SQL Release 1
DESCRIBE QUERY EXECUTION
Get last query path
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