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4. Data Manipulation LanguageQuestions & Answers

Master 4. Data Manipulation Language with verified practice questions, step-by-step logic, and deep conceptual explanations.

Study Guide & Core Focus Areas

When reviewing 4. Data Manipulation Language, pay special attention to edge cases, time/space complexity tradeoffs, and syntax nuances. Attempt each question independently before revealing the explanation to reinforce active recall.

Topic Question Index

Merge is not supported by MySQL. The other possible way of doing the work of merge statement, is by using ON DUPLICATE KEY UPDATE …Consider the below table structure: Column Name DataType Constraint Empname Varchar(20) Not Null EmpId int(10) PK Phoneno bigint(1…Examine the structure of the STUDENT table: Column Name DataType Constraint Stud_id int(3) PK Name Varchar(20) Not Null Address Va…State True or False. COMMIT ends the current transaction by making all pending data changes permanent.Numeric datatype is used to store_______Which of the below is a reference option for deleting rows from a table?To remove a relation from SQL database, we use ___________ command.What is the Default format for Date datatype?

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