How to express decimals in SQL

In SQL, decimals are usually represented using the DECIMAL or NUMERIC data type. DECIMAL is used to represent decimals with fixed precision and scale, whereas NUMERIC allows variable precision and scale. Choosing the appropriate type depends on the precision and variability of decimals required.

Representation of decimals in SQL

In SQL, decimals are usually represented by DECIMAL or NUMERIC Data type representation.

DECIMAL

DECIMAL data type used to represent decimals with fixed precision and number of decimal places. Precision is the total number of digits in a number (including the decimal point), and decimal places are the number of digits to the right of the decimal point.

For example:

<code>DECIMAL(5,2)</code>

represents a decimal with a length of 5 digits and a decimal place of 2 digits.

NUMERIC

NUMERIC data type is similar to DECIMAL, but allows variable precision and scale. This means that the length and precision of decimals can be dynamically adjusted as data is inserted.

For example:

<code>NUMERIC(5,2)</code>

represents a decimal, with a precision of 5 digits and a decimal place of 2 digits. However, when inserting data, decimals can have different precisions and scales, as long as specified limits are not exceeded.

Choose the appropriate type

Select DECIMAL or NUMERIC The data type depends on the required precision and availability of decimals transsexual. For decimals with fixed precision and scale, use DECIMAL. For decimals with variable precision and digits, use NUMERIC.

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