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What is trigger?
Triggers are statements that are executed automatically by the system as the side effect of a modification to the database.
what does glory be mean
Can we delete data element, which is being used by table fields. No we cant delete data element.
please describe the data base management with the easy example &give the application?
what is database management system? & why it is required?
What is Identity? Identity (or AutoNumber) is a column that automatically produces numeric values. A start and increment value can be set, but most DBA leave these at 1. A GUID
how many types of data model in DBMS? explain data abstraction with its different level
Consider the following frequency counts of some itemsets in a transaction database r : freq({A}, r) = 0.405 freq({B}, r) = 0.510 freq({C}, r) = 0.303 freq({A
Availability: A site having the copy of a replicated relation fails, even then the relation may be found in another site. Therefore, the system may carry on to process at least th
What are the different integrity constraints in RDBMS? The various integrity constraints in RDBMS are as: Primary Key: primary key is a grouping of one or more attributes
What does the extract statement do in extract datasets? The data is written to virtual memory by extract commands.
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