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What is the purpose of tables, private synonyms and public synonyms? If there are multiple objects of similar name on an Oracle database, that order are they accessed in?
The reason of table is to store data. If we use the PUBLIC keyword (or no keyword at all), anyone who has access to the database can use our synonym. If the database is not ANSI-compliant, a user does not require to know the name of the owner of a public synonym. Any synonym in a database which is not ANSI-compliant and was formed in an Informix database server is a public synonym. In an ANSI-compliant database, all synonyms are private. If you use the PUBLIC or PRIVATE keywords than the database server issues a syntax error. If you use the PRIVATE keyword to declare a synonym in a database which is not ANSI-compliant, the unqualified synonym can be used through its owner. Other users must qualify the synonym along with the name of the owner.
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i have assignments I don''t have time to finish because of work and other assignments, can you help with this? All are from the book Darabase design, application development and a
What is a database? Database - Basically in simple terms A database is a collection of inter related data and/or information stored so which it is available to several users
sy bcs project of hospital managment system
Whenever the LIMIT clause will be used? LIMIT is used for the following kinds of problems: 1) Answering questions about first or last and largest or smallest 2) Splitting
External failure : A failure can also result because of an external cause, such as earthquakes, fire, floods, etc. The database must be duly backed up to avoid troubles occurring d
To do the division operation R1 ÷ R2, R2 should be a correct subset of R1. In the following example R1 have attributes A and B and R2 have only attribute B so R2 is a correct subse
Explain trigger? Trigger: A database trigger is procedural code which is automatically executed within response to certain events on a particular table in a database. Trigger
1 NF Normal Form The domain of attribute must add only atomic (simple, indivisible) values First normal form (Minimal Form or 1NF) is a normal form need in database normalizat
tell me the functionality,advantages and disadvantages of student database
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