Database Designer Functions
Database Designer functions perform the following operations, generally performed in the following order:
- Create a design.
- Set design properties.
- Populate a design.
- Create design and deployment scripts.
- Get design data.
- Clean up.
You can also use meta-function DESIGNER_SINGLE_RUN, which encapsulates all of these steps with a single call. The meta-function iterates over all queries within a specified timespan, and returns with a design ready for deployment.
For detailed information, see Workflow for Running Database Designer Programmatically. For information on required privileges, see Privileges for Running Database Designer Functions
Before running Database Designer functions on an existing schema, back up the current design by calling EXPORT_CATALOG.
DESIGNER_CREATE_DESIGN directs Database Designer to create a design.
The following functions let you specify design properties:
|DESIGNER_SET_DESIGN_TYPE||Specifies whether the design is comprehensive or incremental.|
|DESIGNER_DESIGN_PROJECTION_ENCODINGS||Analyzes encoding in the specified projections and creates a script that implements encoding recommendations.|
|DESIGNER_SET_DESIGN_KSAFETY||Sets the K-safety value for a comprehensive design.|
|DESIGNER_SET_OPTIMIZATION_OBJECTIVE||Specifies whether the design optimizes for query or load performance.|
|DESIGNER_SET_PROPOSE_UNSEGMENTED_PROJECTIONS||Enables inclusion of unsegmented projections in the design.|
The following functions let you add tables and queries to your Database Designer design:
|DESIGNER_ADD_DESIGN_TABLES||Adds the specified tables to a design.|
|DESIGNER_ADD_DESIGN_QUERY||Adds queries to the design and weights them.|
The following functions populate the Database Designer workspace and create design and deployment scripts. You can also analyze statistics, deploy the design automatically, and drop the workspace after the deployment:
|DESIGNER_RUN_POPULATE_DESIGN_AND_DEPLOY||Populates the design and creates design and deployment scripts.|
|DESIGNER_WAIT_FOR_DESIGN||Waits for a currently running design to complete.|
Reset a design
DESIGNER_RESET_DESIGN discards all the run-specific information of the previous Database Designer build or deployment of the specified design but retains its configuration.
The following functions display information about projections and scripts that the Database Designer created:
|DESIGNER_OUTPUT_ALL_DESIGN_PROJECTIONS||Sends to standard output DDL statements that define design projections.|
|DESIGNER_OUTPUT_DEPLOYMENT_SCRIPT||Sends to standard output a design's deployment script.|
The following functions cancel any running Database Designer operation or drop a Database Designer design and all its contents:
|DESIGNER_CANCEL_POPULATE_DESIGN||Cancels population or deployment operation for the specified design if it is currently running.|
|DESIGNER_DROP_DESIGN||Removes the schema associated with the specified design and all its contents.|
|DESIGNER_DROP_ALL_DESIGNS||Removes all Database Designer-related schemas associated with the current user.|