COMPUTER SCIENCE AND ENGINEERING
SQL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Dec
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Distinct
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Duplicate
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None of the above
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Detailed explanation-1: -The SQL DISTINCT keyword, which we have already discussed is used in conjunction with the SELECT statement to eliminate all the duplicate records and by fetching only the unique records.
Detailed explanation-2: -The DISTINCT keyword in the SELECT clause is used to eliminate duplicate rows and display a unique list of values. In other words, the DISTINCT keyword retrieves unique values from a table.
Detailed explanation-3: -According to Delete Duplicate Rows in SQL, you can also use the SQL RANK feature to get rid of the duplicate rows. Regardless of duplicate rows, the SQL RANK function returns a unique row ID for each row. You need to use aggregate functions like Max, Min, and AVG to perform calculations on data.
Detailed explanation-4: -DATA tab → Data Tools section → Remove Duplicates You can select the columns you want to compare and check for duplicate data.