DATE FORMAT in SQL – SQL FORMAT ()

This FORMAT () function in the SQL is utilized for formatting a field in order to be brought into its displayable standard format.

The Syntax for the format function is mentioned below:

SELECT FORMAT (column_name, format) FROM table name;

Here, the column_name –  Tells about the ground where formatting is required. And the format – Defines the layout

For Example Table: Shopping

MerchandiseName Cost Date
SELECT MerchandiseName, Cost, FORMAT (Now (),'YYYY-MM-DD') AS PerDate FROM Merchandise;

The Above example chooses any item from the column named as MerchandiseName and cost for the particular day’s date from the Shopping table.

DATE FORMAT in SQL

The DATE_FORMAT () returns a value formatted with the specified format. It is used for the locale-aware formatting of date/time and number values as strings. Let us understand more about it below:

The DATE_FORMAT ()

It is a function from the SQL server. The date format in SQL is used for displaying the time and date in several layouts and representations.

Syntax

DATE_FORMAT (date, format)

–Where date is a suitable date and  Format tells about the layout to be represented.

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SQL Date Format Functions

In SQL, while working with a database, the date format in the table must be matched with the input date. Now, there are certain default date format functions present in SQL Below are some of the default SQL Date Functions: .

  • NOW ()  – Returns the current date and time
  • CURTIME() – Returns the current time
  • EXTRACT() – Returns a single part of a date/time
  • DATE_SUB() – Subtracts a specified time interval from a date
  • DATE_FORMAT() – Displays date/time data in different formats
  • DATEDIFF () – Returns the number of days between two dates
  • DATE_ADD() – Adds a specified time interval to a date
  • DATE() – Extracts the date part of a date or date/time expression
  • CURDATE() – Returns the current date

SQL Date Functions

There are several SQL Date functions but not all are used mostly. There are certain SQL Date Functions that are used frequently. Some of those default SQL Date functions are:

  • GETDATE () – Returns the time between two dates
  • DATEADD () – Adds or subtracts a specified time interval from a date
  • CONVERT () – Displays date/time data in different formats. It converts date format into SQL
  • DATEPART () – Returns a single part of a date/time
  • DATEDIFF () – Returns the current date and time

SQL Date Data Types

For storing date and time, the different data types are:

  • DATE – in YYYY-MM-DD format in SQL
  • YEAR – in YYYY or YY format in SQL
  • TIMESTAMP – in YYYY-MM-DD HH: MI:SS format in SQL
  • DATETIME – in YYYY-MM-DD HH: MI: SS format in SQL

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Datetime Format In SQL

Date and Time Data Types

The Date format types are in the table below:

Data type Accuracy Storage size (bytes) User-defined fractional second precision Time zone offset
time 100 nanoseconds 3 to 5 yes no
date 1 day 3 no
smalldatetimen 1 minute 4 no no
date time 0.00333 second 8 no no
datetime2 100 nanoseconds 6 to 8 yes no
datetimeoffset 100 nanoseconds 8 to 10 yes yes

Date and Time Functions

Function Syntax Return data type Deterministic
SYSDATETIME SYSDATETIME () datetime2(7) No
SYSDATETIMEOFFSET SYSDATETIMEOFFSET ( ) datetimeoffset(7) No
SYSUTCDATETIME SYSUTCDATETIME ( ) datetime2(7) No

Lower-Precision System Date and Time Functions

Function Syntax Return data type Deterministic
SYSDATETIME SYSDATETIME () datetime2(7) No
SYSDATETIMEOFFSET SYSDATETIMEOFFSET ( ) datetimeoffset(7) No
SYSUTCDATETIME SYSUTCDATETIME ( ) datetime2(7) No

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Functions to Get Date and Time Parts

Function Syntax Return data type Deterministic
DATENAME DATENAME ( datepart ,date ) nvarchar No
DATEPART DATEPART ( datepart ,date ) int No
DAY DAY ( date ) int Yes
MONTH MONTH ( date ) int Yes
YEAR YEAR ( date ) int Yes

Functions to Get Date and Time Values from Their Parts

Function Syntax Return data type Deterministic
DATEFROMPARTS DATEFROMPARTS ( yearmonthday ) date Deterministic
DATETIME2FROMPARTS DATETIME2FROMPARTS
yearmonthday,hourminutesecondsfractionsprecision )
datetime2
( precision )
Deterministic
DATETIMEFROMPARTS DATETIMEFROMPARTS
yearmonthdayhour,minutesecondsmilliseconds )
datetime Deterministic
DATETIMEOFFSETFROMPARTS DATETIMEOFFSETFROMPARTS ( yearmonth,dayhourminuteseconds,
fractionshour_offset,minute_offsetprecision )
datetime
( precision )
Deterministic
SMALLDATETIMEFROMPARTS SMALLDATETIMEFROMPARTS
yearmonth,dayhourminute )
smalldatetime Deterministic
TIMEFROMPARTS TIMEFROMPARTS
hourminuteseconds,fractionsprecision )
time
( precision )
Deterministic

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Functions That Get Date and Time Difference

Function Syntax Return data type Deterministic
DATEDIFF DATEDIFF ( datepart ,startdate , enddate ) int Deterministic
DATEDIFF_BIG DATEDIFF_BIG ( datepart ,startdate , enddate ) bigint Deterministic

Functions That Modify Date and Time Values

Function Syntax Return data type Deterministic
DATEADD DATEADD (datepart , numberdate ) The data type of the dateargument Deterministic
EOMONTH EOMONTH (start_date [,month_to_add ] ) Return type is the type ofstart_date or date. Deterministic
SWITCHOFFSET SWITCHOFFSET(DATETIMEOFFSETtime_zone) datetimeoffset with the fractional precision of theDATETIMEOFFSET Deterministic
TODATETIMEOFFSET TODATETIMEOFFSET (expression ,time_zone) datetimeoffset with the fractional precision of thedatetime argument Deterministic

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Functions That Set or Get Session Format

Function Syntax Deterministic
@@DATEFIRST @@DATEFIRST Nondeterministic
SET DATEFIRST SET DATEFIRST {number |@number_var } Not applicable
SET DATEFORMAT SET DATEFORMAT {format |@format_var } Not applicable
@@LANGUAGE @@LANGUAGE Not applicable
SET LANGUAGE SET LANGUAGE { [ N ] language |@language_var } Not applicable
sp_helplanguage sp_helplanguage [ [ @language = ]language ] Not applicable

Functions That Proves the Date and Time Values

Function Syntax Return data type Deterministic
ISDATE ISDATE (expression ) int Yes

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SQL Query formatter

It describes how we should format our SQL queries to create a final report. It includes
• Formatting the Columns in the Table
• expounding the Report with all the positioning and synopsis Lines
• Explaining folio and Report Topics and Sizes
• Storing and taking printouts of the Query Outputs
• Producing the Website Reports
This brings us to the end of this Date format in SQL. Meanwhile, there is a lot more you can do using SQL Date format which we will see in our coming up tutorial.

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