By Sitansu S. Mittra
Provides an amazing mixture of thought and perform, which permits the reader to appreciate the main at the back of the application.; assurance of functionality tuning of datawarehouses bargains readers the foundations and instruments they should deal with huge reporting databases.; fabric is usually utilized in a non-Oracle atmosphere; hugely skilled writer.
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Extra info for Database performance tuning and optimization : using Oracle
Example: SUPPLIER_NAME instead of NAME, PART_DESCRIPTION instead of DESCRIPTION, etc. A column representing a date will have two or more parts, where the last part will be DATE. The remaining part(s) will indicate the type of the date being named. Example: SHIPMENT_DATE, INVOICE_CREATION_DATE, etc. The data type of a column will be in uppercase. Example: NUMBER, DATE, etc. If the data type is followed by a size indicator, then these conventions will be used: • • Single number size indicator: data type, one blank space, left parenthesis, number, right parenthesis, Example: CHAR (6), NUMBER (5) Paired number size indicator: data type, one blank space, left parenthesis, first number, comma, second number, right parenthesis, Example: NUMBER (4,1).
Except for the System tablespace, there can be one or more of the remaining tablespaces depending on the size and complexity of the database. 1. 2. 3. 4. 5. 6. System: The System tablespace will be named SYSTEM and will contain only Oracle’s data dictionary tables (owned by SYS), the V$ views, and the System rollback segment. Data: If the database contains both dynamic transaction tables and relatively static validation tables, then there will be at least two tablespaces called DATA_TRANS and DATA_VALS for these two types of tables.
Identify the entities referenced by each external level above. Refer to the entity RFP in the GAMES database of Chapter 1. Assume that you have created a table RFP matching this entity under Oracle. The following questions apply to this Oracle table RFP. a. b. c. 4. List of all grantees in Argentina, India, and Japan for their projects dealing with the establishment of eye clinics in their countries; List of all project names with respective start and end dates that received “adverse” findings on scrutiny.
Database performance tuning and optimization : using Oracle by Sitansu S. Mittra