# DATETIME2FROMPARTS (Transact-SQL)

**APPLIES TO:** SQL Server Azure SQL Database Azure Synapse Analytics (SQL DW) Parallel Data Warehouse

This function returns a **datetime2** value for the specified date and time arguments. The returned value has a precision specified by the precision argument.

Transact-SQL Syntax Conventions

## Syntax

```
DATETIME2FROMPARTS ( year, month, day, hour, minute, seconds, fractions, precision )
```

## Arguments

*year*

An integer expression that specifies a year.

*month*

An integer expression that specifies a month.

*day*

An integer expression that specifies a day.

*hour*

An integer expression that specifies the hours.

*minute*

An integer expression that specifies the minutes.

*seconds*

An integer expression that specifies the seconds.

*fractions*

An integer expression that specifies a fractional seconds value.

*precision*

An integer expression that specifies the precision of the **datetime2** value that `DATETIME2FROMPARTS`

will return.

## Return types

**datetime2(** *precision* **)**

## Remarks

`DATETIME2FROMPARTS`

returns a fully initialized **datetime2** value. `DATETIME2FROMPARTS`

will raise an error if at least one required argument has an invalid value. `DATETIME2FROMPARTS`

returns null if at least one required argument has a null value. However, if the *precision* argument has a null value, `DATETIME2FROMPARTS`

will raise an error.

The *fractions* argument depends on the *precision* argument. For example, for a *precision* value of 7, each fraction represents 100 nanoseconds; for a *precision* of 3, each fraction represents a millisecond. For a *precision* value of zero, the value of *fractions* must also be zero; otherwise, `DATETIME2FROMPARTS`

will raise an error.

This function supports remoting to SQL Server 2019 (15.x) servers and above. It will not support remoting to servers that have a version below SQL Server 2019 (15.x).

## Examples

### A. An example without fractions of a second

```
SELECT DATETIME2FROMPARTS ( 2010, 12, 31, 23, 59, 59, 0, 0 ) AS Result;
```

Here is the result set.

```
Result
---------------------------
2010-12-31 23:59:59.0000000
(1 row(s) affected)
```

### B. Example with fractions of a second

This example shows the use of the *fractions* and *precision* parameters:

When

*fractions*has a value of 5, and*precision*has a value of 1, the value of*fractions*represents 5/10 of a second.When

*fractions*has a value of 50, and*precision*has a value of 2, the value of*fractions*represents 50/100 of a second.When

*fractions*has a value of 500, and*precision*has a value of 3, then the value of*fractions*represents 500/1000 of a second.

```
SELECT DATETIME2FROMPARTS ( 2011, 8, 15, 14, 23, 44, 5, 1 );
SELECT DATETIME2FROMPARTS ( 2011, 8, 15, 14, 23, 44, 50, 2 );
SELECT DATETIME2FROMPARTS ( 2011, 8, 15, 14, 23, 44, 500, 3 );
GO
```

Here is the result set.

```
----------------------
2011-08-15 14:23:44.5
(1 row(s) affected)
----------------------
2011-08-15 14:23:44.50
(1 row(s) affected)
----------------------
2011-08-15 14:23:44.500
(1 row(s) affected)
```

## See also

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