Partition based refresh for Informix Warehouse Accelerator.
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With Informix 11.70.FC5, you can refresh only the modified/new partitions to Informix Warehouse Accelerator. This presentation shows the two use cases for it.
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Partition based refresh for Informix Warehouse Accelerator.
- 1. Informix Ultimate Warehouse edition IBM Smart Analytics Studio Step 1. Install, configure, start Informix Step 2. Install, configure, Step 3 start Accelerator Step 1 Step 3. Connect Studio to Informix & add accelerator Step 4 Informix Database Server Step 4. Design, validate, Deploy Data mart Step 5 Step 5. Load data to accelerator Ready for Queries BI Applications Step 2 Ready Informix warehouse Accelerator Session A14 1
- 2. Case 1: Partition refresh: Updates to existing Partitions IBM Smart Analytics Step 1. Create the Sales-Mart Studio or stored and load it. Sales is the fact partitioned fact table procedures or table -- range partitioned. command line tool Step 2. Load jobs update the fact table “sales” Step 1 Only updates existing partition customer Step 2 sales Step 3. Identify the partition, execute dropPartMart(). Modified partition SQL Script: call Stored procedure Step 4. for same partition, execute loadPartMart(). stores Step 3 Step 4 Informix Database Server Ready for Queries INSERT, UPDATE, DELETE BI Applications IWA Sales-Mart Ready OLTP Apps Session A14 2
- 3. Time cyclic data management Partitioned fact table, partitioned by week working window week1 week2 week3 Session A14 3
- 4. Time cyclic data management Partitioned fact table, partitioned by week working window week1 week2 week3 week4 DETACH ATTACH week1 week4 partition partition Session A14 4
- 5. Time cyclic data management with IWA Partitioned fact table, partitioned by week working window week1 week2 week3 week4 week6 DETACH ATTACH partition partition 1. Execute dropPartMart on IWA a. ATTACH the partition 2. DETACH partition from the table b. Execute loadPartMart() on IWA Session A14 5
- 6. Case 2: Partition refresh: Time Cyclic data management IBM Smart Analytics Step 1. Create the Sales-Mart Studio or stored and load it. Sales is the fact partitioned fact table procedures or table -- range partitioned. command line tool Need to move the Time window to next range. Step 1 customer Step 2. DETACH operation sales b. Execute dropPartMart() Move the window. c. DETACH the partition Step 3. ATTACH operation a. ATTACH the partition stores b. Execute loadPartMart() Step 2 Step 3 Informix Database Server Ready for Queries BI Applications IWA Sales-Mart Ready OLTP Apps Session A14 6
- 7. dropPartMart() procedure 1. Uses the accelerator name, datamart name, table name and partition name. Partition name can be the name of the partition or partition number (sysfragments.partn) The partition name or number should be a valid partition for the table. Call dropPartMart() first before doing the DEATCH Session A14 7
- 8. loadPartMart() procedure 1. Uses the accelerator name, datamart name, table name and partition name. Partition name can be the name of the partition or partition number (sysfragments.partn) The partition name or number should be a valid partition for the table. ATTACH the partition first, before calling loadPartMart(). Session A14 8
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- execute function dropPartMart(’myAccelerator’,’myMart’,’user10’,’tab22’,’part1’); execute function loadPartMart(’myAccelerator’,’myMart’,’user10’,’tab22’,’part1’);
- execute function dropPartMart(’myAccelerator’,’myMart’,’user10’,’tab22’,’part1’); execute function loadPartMart(’myAccelerator’,’myMart’,’user10’,’tab22’,’part1’);