Which of the following statements correctly describe the DELETE operation?1) DROP database [database_name], delete a specific database2) DELETE from [table_name], delete all record from a specific table3) DELETE from [table_name] where [condition], delete a record that meets the condition from a specific table4) DROP table [table_name], delete a specific tableQuestion 9Select one:a.4,3,1b.1,2,3,4c.2,3,4d.1,2,3
Question
Which of the following statements correctly describe the DELETE operation?1) DROP database [database_name], delete a specific database2) DELETE from [table_name], delete all record from a specific table3) DELETE from [table_name] where [condition], delete a record that meets the condition from a specific table4) DROP table [table_name], delete a specific tableQuestion 9Select one:a.4,3,1b.1,2,3,4c.2,3,4d.1,2,3
Solution
The correct answer is b.1,2,3,4. All the statements correctly describe the DELETE operation in SQL.
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DROP database [database_name] - This command is used to delete a specific database.
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DELETE from [table_name] - This command is used to delete all records from a specific table. However, the structure of the table remains.
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DELETE from [table_name] where [condition] - This command is used to delete a record that meets the condition from a specific table.
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DROP table [table_name] - This command is used to delete a specific table. It deletes the table structure along with the records.
Similar Questions
What will happen, if you execute DELETE command without WHERE clause?All records of table will be deletedOnly one record will be deletedTable will be deletedTop 10 records will be deleted
Choose the correct options. __________ command is used to delete the records and _________ command is used to delete the db objects?Select one:Drop ,TruncateTruncate , DeleteTruncate , DropDelete , Truncate
To delete rows from the SALES table, where the PROMO_NAME column in thePROMOTIONS table has either 'blowout sale' or 'everyday low price' as values. Which DELETE statements are valid? (Choose all that apply.)Select one or more:a.DELETEFROM salesWHERE promo_id = (SELECT promo_idFROM promotionsWHERE promo_name = 'blowout sale')AND promo_id = (SELECT promo_idFROM promotionsWHERE promo_name = 'everyday low price');b.DELETEFROM salesWHERE promo_id IN (SELECT promo_idFROM promotionsWHERE promo_name = 'blowout sale'OR promo_name = 'everyday low price');c.DELETEFROM salesWHERE promo_id = (SELECT promo_idFROM promotionsWHERE promo_name = 'blowout sale')OR promo_id = (SELECT promo_idFROM promotionsWHERE promo_name = 'everyday low price');d.DELETEFROM salesWHERE promo_id IN (SELECT promo_idFROM promotionsWHERE promo_name IN ('blowout sale','everyday low price'));
Which SQL statement is used to delete data from a database?
Which SQL statement is used to delete all records from a table?OptionsDELETE ALLREMOVEDROPTRUNCATE
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