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Define lock? Lock is the most common used to execute the requirement is to permit a transaction to access a data item only if it is currently holding a lock on that item.
Example: Consider the following relations: ROLLNO NAME ADDRESS COURSE_ID 100 Ka
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
Using Relational Algebra which query finds customers, who have a balance of over 1000 ? Using Relational Algebra Π Customer_name( σ balance >1000(Deposit)) is query to find cu
Ask Write the SQL code that will create the table structure for a table named EMP _1. This table is a subset of the EMPLOYEE table. The basic EMP_1 table structure is summarized in
What are the advantages of Logical Databases? It offers a simple-to-use selection screens. You can change the pre-generated selection screen to your needs. It offers check f
Normal 0 false false false EN-US X-NONE X-NONE
explain three types of internet risks to the consummers whent he business system is data dependent. how can we minimise these risks
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
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