MySQL – String Functions MCQ

MySQL – String Functions MCQ

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1. What is the primary purpose of MySQL string functions?

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2. Which MySQL function is used to combine two or more strings into a single string?

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3. What does the LENGTH() function in MySQL calculate for a string?

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4. Which MySQL function converts a string to uppercase?

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5. What is the purpose of the TRIM() function in MySQL?

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6. Which string function is used to search for a substring within a string and return its position?

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7. In MySQL, which function can be used for pattern matching with wildcard characters like ‘%’ and ‘_’?

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8. What does the REPLACE() function in MySQL do?

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9. What is the primary purpose of the SUBSTRING() function in MySQL?

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10. Which MySQL function allows you to insert a substring into a string at a specified position?

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11. What is the purpose of the CONCAT_WS() function in MySQL?

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12. Which MySQL function converts a numeric value to a formatted string with thousands separators?

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13. What is the primary benefit of using functions like UPPER() and LOWER() on text data?

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14. What should you consider when applying string functions to large datasets in MySQL?

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15. Which string function is used for character set analysis in MySQL?

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16. In MySQL, what does the ASCII() function return for a given character in a string?

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17. Which MySQL function allows regular expression pattern matching within a string?

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18. What does the INSTR() function in MySQL do?

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19. Which string function in MySQL is used to search for a substring within a string and return its position?

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20. What should you avoid when applying string functions to columns in WHERE clauses in MySQL?

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21. Which string function in MySQL is used to remove leading and trailing spaces or specified characters from a string?

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22. What does the FORMAT() function in MySQL do when applied to numeric values?

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23. Which string function in MySQL can be used to concatenate multiple strings with a specified delimiter?

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24. In MySQL, what is the primary use of the REGEXP function in string manipulation?

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25. How can you ensure data security when applying string functions to user input in MySQL?

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