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How can you map NULL values to other values while display?
IF( ) , IFNULL( ) keywords are used to do so. They are 'LIMIT' is used for the following kinds of problems:
1) Answering questions about first or last and largest or smallest
2) Splitting a result set into sections so that you can method it one piece at a period.
What is a virtual table that draws its data from the result of an SQL SELECT statement? View is a virtual table that draws its data from the result of an SQL SELECT statement.
what is data link layer
Express types of information available in MySQL? Information as regards the result of queries: This includes number of records affected by any SELECT or UPDATE or DELETE st
Consider the following database containing five transactions. Let min_sup = 60%. Mine all frequent itemsets using Apriori and FP-growth algorithm. Compare the efficiency of the t
I need help with data warehousing and business intelligence course project about designing a data warehouse for a jewelry company that does not have one
Define Query Processing Query processing is the process of selecting the best plan or strategy to be employed in responding to a database request. The plan is then executed to
multiplicity constarin
List the types of authorization. A) Read authorization B) Write authorization C) Update authorization D) Drop authorization
What is trigger Triggers are statements that are implemented automatically by the system as the side effect of a change to the database.
Differentiate OO development from structured development. Structured approach of problem solving is based upon the idea of decomposition of system into subsystem. In this appro
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