Which of the following data types used in SQL could be used to define a variable-length text field of 20 characters?Question 7Select one:a.char(20)b.varchar(20)c.bit(20)d.fixed(20)
Question
Which of the following data types used in SQL could be used to define a variable-length text field of 20 characters?Question 7Select one:a.char(20)b.varchar(20)c.bit(20)d.fixed(20)
Solution
To define a variable-length text field of 20 characters in SQL, you can use the data type "varchar(20)".
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