## How do I count the number of decimal places in SQL?

**You cannot reliably find** the number of decimal places a number in a database has, because it is approximated to round it to store in a limited amount of storage. The difference between the real value, or even the exact binary value in the database will be rounded to represent it in decimal.

## How do I get decimal part in SQL Server?

That’s the fractional part. To make into an integer, scale it. **X – TRUNC(X), works for negatives** too. It would give you the decimal part of the number, as a double, not an integer.

## How do I get only 2 decimal places in SQL?

Replace your query with the following. Select Convert(Numeric(38, 2), Minutes/60.0) from …. MySQL: Select Convert(Minutes/60.0, Decimal(65, 2)) from ….

## How do I reduce decimal places in SQL?

The SQL AVG() function returns the average value with default decimal places. The **CAST()** is used to increase or decrease the decimal places of a value. The CAST() function is much better at preserving the decimal places when converting decimal and numeric data types.

## How do I remove decimal places in SQL?

Overview of SQL **TRUNCATE() function**

The TRUNCATE() function returns n truncated to d decimal places. If you skip d , then n is truncated to 0 decimal places. If d is a negative number, the function truncates the number n to d digits left to the decimal point. The TRUNCATE() function is supported by MySQL.

## What is Floor in SQL?

The SQL FLOOR() function **rounded up any positive or negative decimal value down to the next least integer value**. SQL DISTINCT along with the SQL FLOOR() function is used to retrieve only unique value after rounded down to the next least integer value depending on the column specified. Syntax: FLOOR(expression)

## How do I get only the numbers before the decimal in SQL?

11 Answers

**Use TRUNC(158.96)** to get the digits before decimal point.

## How do I find SQL mods?

**The SQL DISTINCT command along with the SQL MOD() function is used to retrieve only unique records depending on the specified column or expression.**

- Syntax: MOD( dividend, divider )
- PostgreSQL and Oracle. …
- MySQL Syntax: MOD(dividend,divider); dividend % divider; dividend MOD divider;
- Parameters: …
- Example:

## What does 3 decimal places mean?

Rounding numbers up or down is a way of approximating them to make them more manageable. … When you round to the third decimal place, you’re **rounding to the nearest thousandth**.

## What are 2 decimal places?

If we want to round 4.732 to 2 decimal places, it will either round to 4.73 or **4.74**. 4.732 rounded to 2 decimal places would be 4.73 (because it is the nearest number to 2 decimal places). 4.737 rounded to 2 decimal places would be 4.74 (because it would be closer to 4.74).

## Do zeros count as decimal places?

If a zero is behind a decimal and is trailing a non**-zero, then it is significant**. E.g. 5.00 – 3 significant figures. If a zero is leading a number, before or after the decimal, it is not significant. … If a zero is trailing a non-zero digit, but it is not behind a decimal, it is not significant.

## How do I round up a SQL query?

SELECT ROUND(**@value**, 2); SELECT ROUND(@value, 3); In this example, we can see that with decimal values round up to the nearest value as per the length.

## How do you subtract in SQL?

Arithmetic operators can perform arithmetical operations on numeric operands involved. Arithmetic operators are addition(+), subtraction(-), multiplication(*) and division(/).

…

Arithmetic Operators.

Operator | Meaning | Operates on |
---|---|---|

– (Subtract) | Subtraction | Numeric value |

* (Multiply) | Multiplication | Numeric value |

/ (Divide) | Division | Numeric value |

## What is the data type for decimal in SQL?

SQL General Data Types

Data type | Description |
---|---|

BIGINT | Integer numerical (no decimal). Precision 19 |

DECIMAL(p,s) | Exact numerical, precision p, scale s. Example: decimal(5,2) is a number that has 3 digits before the decimal and 2 digits after the decimal |

NUMERIC(p,s) | Exact numerical, precision p, scale s. (Same as DECIMAL) |