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What is Asterisk in SQL?
Asterisk (*): In SQL, the columns for all the tables and views in the FROM clause will be displayed.
List and explain the memory constructs of the Oracle 12c databases?
Synonyms It allows short names or alternative names for objects. Example : CREATE SYNONYM D30 FOR EMPD30; Now if we give command:
Timestamps For Read operations: If TS (T) If TS (T) >= W-timestamp (Q), then the transaction T is trying to read a value of data item Q which has been written and committed
Nested Queries Let us see some more complex queries in this section. Sub-queries: Some of the basic concerns of sub-queries are: A sub-query is a SELECT statemen
What is the way a particular application views the data from the database that the application uses? Sub schema is the way a particular application views the data from the data
Project Description: This is a Customer Management project. Customer data is presented in a text file. The program can load this text data into its database columns. The data ma
Explain Clustering file organization (i) Determine if a record of file is physically ordered on a nonkey field - that does not comprise a different value for each record - that
Write short notes on Schema diagram. A database schema along with primary key and foreign key dependencies can be depicted pictorially by schema diagram. Every relation appears
#questiontypes of keys examples..
Meaningful use refers to the use of certified EHR technology to "enhance quality, efficiency, and reduce health disparities
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