Which of the following is a valid SQL type?

• CHARACTER

• NUMERIC

• FLOAT

• All of the above

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In SQL, "CHARACTER", "NUMERIC", and "FLOAT" are all data types that can be used to define columns in a table.

The CHARACTER data type is used to store character strings of a fixed length. For example: CHAR(10) would define a character string of length 10.

The NUMERIC data type is used to store numbers with a fixed decimal point. For example: NUMERIC(5,2) would define a number with 5 digits in total and 2 digits after the decimal point.

The FLOAT data type is used to store floating-point numbers with a varying number of digits after the decimal point.

In SQL, data types are used to ensure that the values stored in a column are of the correct type and format, which helps to ensure the integrity and accuracy of the data in the database.