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what is the need of a log in dbms
Which data type can store unstructured data? Raw data type can store unstructured data.
What is trigger Triggers are statements that are implemented automatically by the system as the side effect of a change to the database.
In which format database schema is written ? Data base schema is written in the DDL format.
What Count function return in SQL? Count function within SQL returns the number of values. (Count function counts all the not null values in the exact column. If we need to cou
A constraint named less_than_20 was defined on the field date_of_birth of table student. Delete this constraint. ALTER TABLE student DROP CONSTRAINT less_than_20;
For this application, we will consider IBM DB2 catalog data (i.e., metadata) for IBM's enterprise-class servers running the z/OS (formerly OS/390 or MVS) operating system. One of
List the set operations of SQL? 1) Union 2) Intersect operation 3) The except operation
Define Thomas write rule Thomas' write rule: The Thomas' write rule is a modification of timestamp-ordering protocol for concurrency control. Assume that transaction T i issue
as a customer service employee explain five measures you would recommend to make even a displeased students patronize the school canteen
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