Skip to main content
Extracts year, month and day from a DATE, TIMESTAMP, or TIMESTAMPTZ value and combines them into an integer beginning with the four-digit year followed by the two-digit month followed by the two-digit day. TO_YYYYMMDD(<expression>) is equivalent to EXTRACT(YEAR FROM <expression>) * 10000 + EXTRACT(MONTH FROM <expression>) * 100 + EXTRACT(DAY FROM <expression>);

​
Syntax

TO_YYYYMMDD(<expression>)

​
Parameters

ParameterDescriptionSupported input types
<expression>The expression from which the time units are extracted.DATE, TIMESTAMP, TIMESTAMPTZ
TIMESTAMPTZ values are converted to local time according to the session’s time_zone setting before extracting the time units.

​
Return Types

INT

​
Remarks

The TO_YYYYMMDD function can be used in the PARTITION BY clause of CREATE TABLE commands. 
CREATE TABLE test (
  t TIMESTAMP
)
PARTITION BY TO_YYYYMMDD(t);

​
Example

SELECT TO_YYYYMMDD('2025-04-03') as yyyymmdd, TO_YYYYMM('2025-04-03') as yyyymm;
yyyymmdd intyyyymm int
20250403202504

Rows: 1Execution time: 5.16ms

SELECT TO_YYYYMMDD('1920-12-30') as yyyymmdd, TO_YYYYMM('1920-12-30') as yyyymm;
yyyymmdd intyyyymm int
19201230192012

Rows: 1Execution time: 4.86ms