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[DOC File]SIMPLE AND ADVANCED QUERIES
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A data dictionary contains medata, that is data about data. The schema of table is an example of medata. A database system consults data dictionary or data directory. Through the set of special type of DDL , called data storage definition language, we may specify the storage structure (like size of database, size of table etc) and access methods.
schema vs database

[DOC File]Introduction to Database Systems – Chapter 1
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Entity vs. attribute, entity vs. relationship, binary or n-ary relationship, whether or not to use ISA hierarchies, and whether or not to use aggregation. Ensuring good database design: resulting relational schema should be analyzed and refined further. FD information and normalization techniques are especially useful. Constraints
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[DOC File]White Paper Template Updated August 2002
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Table 4:Database Schema. world. The Orders table was pre-populated with ten million orders per month, starting in January 2003 and ending in July 2003, with each month in a separate logical partition. The Ordersdetails table was pre-populated with an average of 5 items per order, also partitioned by month. The Products table contained one ...
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[DOCX File]Data Conversion Plan Template - CMS
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Instructions: Provide a technical overview of the source and target system and major components involved in the conversion. At a high-level, describe the purpose of the applications, how the data are stored, the criticality of the data, the sensitivity of the data, etc. Describe the function of the data in the old system and identify if the use will be the same or different in the new system.
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[DOCX File]Database Design Document Template - CMS
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Instructions: Describe the use and management of integrity and access controls that apply to all database components such as schema, sub-schema, partitions or physical files, records or tables, sets or relations, and data elements. Describe any tools or …
schema and database

[DOCX File]Laboratory Manual - Jawaharlal Nehru Engineering College
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Star schema vs snowflake schema. Dimensional table Vs. Relational Table. Advantages of snowflake schema. ... Elements of an index-by table could also be a %ROWTYPE of any database table or %TYPE of any database table field. The following example illustrates the concept. We will use the CUSTOMERS table stored in our database as:
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[DOCX File]Database Setup - Virginia Tech
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The database schema is constructed so that for every five minute interval between 12 AM on July 1, 2018 and 11:55 PM on November 30, 2018, there is data for traffic speed, traffic flow, and weather (air temperature, wind speed, and precipitation) at each of the 30 data collection stations from mile marker 504 and mile marker 520 on California ...
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[DOC File]Comparison of Traditional File-Based Approach and Database ...
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Each external view described by means of a schema called an external schema or subschema. 2. Conceptual level: At this level of database abstraction all the database entities and the relationships among them are included. One conceptual view represents the entire database. the conceptual schema defines ths conceptual view. 3.
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[DOC File]Database Management System
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Algorithms for Relational Database Schema Design ( Not for BCA) Inclusion Dependencies : Definition: An inclusion dependency R.X < S.Y between two sets of attributes—X of relation schema R, and Y of relation schema S—specifies the constraint that, at any specific time when r is a relation state of R and s a relation state of S, we must have
schema vs database

[DOC File]CS 4/53005 Database System Design
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Given a table schema and an FD, apply Heath’s Theorem to decompose the table schema. (Caution: On HW #3, very few of you were able to explain what you were doing during decomposition. You must be able to walk the reader through your application of Heath’s Theorem to justify your actions.) Describe by example a . Multi-valued Dependency.
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Database schema vs table