How do you convert a decimal to a percent in SQL?

To support percentage decimal precision, you can use P0 for no decimals (whole-numbers) or P3 for 3 decimals (97.368%).

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What datatype is used for percentage in SQL?

The percent (“P”) format specifier multiplies a number by 100 and converts it to a string that represents a percentage. Show activity on this post. If 2 decimal places is your level of precision, then a “smallint” would handle this in the smallest space (2-bytes). You store the percent multiplied by 100.

What data type is a percentage?

Percentage was added as fourth numeric data type to the Query Editor/M in November of 2016. Unlike whole number, fixed decimal number, and decimal number, this type does not have a corresponding type in the data model. When loaded to the data model, the percentage data type is represented as a decimal number type.

How do I make a percentage in SQL?

Finding Percentage using Two Variables There is no built-in operator that calculates percentages in SQL Server. You have to rely on basic arithmetic operations i.e. (number1/number2 x 100) to find percentages in SQL Server.

What is decimal function in SQL?

Overview of SQL Server DECIMAL Data Type p is the precision which is the maximum total number of decimal digits that will be stored, both to the left and to the right of the decimal point. The precision has a range from 1 to 38. The default precision is 38.

What data type is a decimal?

exact numeric data type
The decimal data type is an exact numeric data type defined by its precision (total number of digits) and scale (number of digits to the right of the decimal point).

How do you calculate percentages in SQL w3schools?

13 Answers

The most efficient (using over()). select Grade, count(*) * 100.0 / sum(count(*)) over() from MyTable group by Grade.
Universal (any SQL version). select Grade, count(*) * 100.0 / (select count(*) from MyTable) from MyTable group by Grade;
With CTE, the least efficient.

How do I change the number format in SQL?

SQL Format Number Options

Using CAST – SELECT CAST(5634.6334 as int) as number.
Using CONVERT – SELECT CONVERT( int, 5634.6334) as number.
Using ROUND – SELECT ROUND(5634.6334,2) as number.
Using CEILING – SELECT FLOOR(5634.6334) as number.
Using FLOOR – SELECT CEILING(5634.6334) as number.