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Clearly state the differences between OLTP and OLAP
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| written 9.1 years ago by |
| Criteria | OLTP | OLAP |
|---|---|---|
| Users | Clerks, Employees | Managers & Executives |
| Data Source | Data related to day to day business activities | Data obtained by complex aggregated functions. |
| Queries | Standard, simple queries | Complex queries involving aggregation |
| Query Language | SQL | DMQL |
| Access Rights | Read Write | Read only |
| Space Requirements | Relatively small | Relatively large |
| Backup & recovery | Frequently made | Hardly made |
| DB Design | Normalized tables | Few De-normalized tables using star or snowflake schema |
| Orientation | Transaction | Analysis |
| Type of Data | Current Data | Historical Data |
| Apps | Operational customer relationship Mgmt etc. | Decision, Business Mgmt etc. |