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What is the difference between link and reference? The fundamental difference between links and references is that links are symmetrical on the other hand references refer only
In E-R Diagram how relationship type is represented ? In E-R Diagram relationship type is represented as a Diamond.
what is definition hierarchical data model
What are the two types of errors? The two types of errors are: a) Logical error b) System error
Query Processor The query language processor is responsible for taking query language statements or shifting them from the English-like syntax of the query language to a form
What is the use of a slotted-page structure and what is the information are there in the header? The slotted-page structure is used for organizing records within a one block.
what is the importance of back up files
explain cascading rollback
Describe integrity constraints? Integrity Constraints - A database is just as excellent as the information stored in it, and a DBMS must therefore help avoid the entry of inc
Express the properties of Strings? Strings can be case sensitive (or not) which can change the outcome of string operations. You can evaluate whole strings \ just part
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