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Questions and Answers
What does the LTRIM function do in MySQL?
What does the LTRIM function do in MySQL?
- Returns the string with leading (starting) removed (correct)
- Returns the rightmost 'n' characters from the string
- Returns the leftmost 'n' characters from the string
- Returns the substring of 'n' characters long from the given string
What does the UCASE/UPPER function do in MySQL?
What does the UCASE/UPPER function do in MySQL?
- Return the rightmost 'n' characters from the string
- Return the leftmost 'n' characters from the string
- Change all alphabets to lowercase
- Change all alphabets to uppercase (correct)
What does the SUBSTRING/MID function do in MySQL?
What does the SUBSTRING/MID function do in MySQL?
- Returns the substring of 'n' characters long from the given string, starting at position 'm' (correct)
- Change all alphabets to uppercase
- Returns the rightmost 'n' characters from the string
- Change all alphabets to lowercase
What does the LCASE/LOWER function do in MySQL?
What does the LCASE/LOWER function do in MySQL?
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What does the RIGHT function do in MySQL?
What does the RIGHT function do in MySQL?
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What does the UCASE/UPPER function do in MySQL?
What does the UCASE/UPPER function do in MySQL?
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What does the LTRIM function do in MySQL?
What does the LTRIM function do in MySQL?
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What does the RIGHT function do in MySQL?
What does the RIGHT function do in MySQL?
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What does the SUBSTRING/MID function do in MySQL?
What does the SUBSTRING/MID function do in MySQL?
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What does the LCASE/LOWER function do in MySQL?
What does the LCASE/LOWER function do in MySQL?
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Study Notes
String Functions in MySQL
Trimming and Case Conversion
- LTRIM function removes leading spaces from a string
- UCASE/UPPER function converts a string to uppercase
- LCASE/LOWER function converts a string to lowercase
Substring Extraction
- SUBSTRING/MID function extracts a part of a string, starting from a specified position and with a specified length
String Extraction
- RIGHT function returns the rightmost characters of a string, with a specified length
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