This function only supports compatibility mode dates.
We recommend upgrading any older date fields in your data sources to the new Date or Date & Time types. After upgrading:
- You can use the FORMAT_DATETIME function to format a date as text.
- You can use the PARSE_DATE and PARSE_DATETIME functions to convert text into Date and Date & Time fields.
You can use TODATE in 2 ways:
- Create a compatibility mode date from Text fields.
- Change the display format and granularity of a compatibility mode date.
Sample usage
TODATE(text date,"%Y/%m/%d","%Y-%m-%d")
TODATE(response_time, 'NANOS', '%Y%m%d')
TODATE(create_time, 'DECIMAL_DATE', '%Y')
Syntax
TODATE(field_expression, input_date_format, output_date_format)
Input formats
input_date_format is optional if field_expression is correctly configured as a semantic date.
TODATE accepts the following input format strings.
-
'BASIC': %Y/%m/%d-%H:%M:%S
-
'DEFAULT_DASH': %Y-%m-%d [%H:%M:%S]
-
'DEFAULT_SLASH': %Y/%m/%d [%H:%M:%S]
-
'DEFAULT_DECIMAL': %Y%m%d [%H:%M:%S
-
'RFC_1123': for example, Sat, 24 May 2008 20:09:47 GMT
-
'RFC_3339': for example, 2008-05-24T20:09:47Z
-
'SECONDS': seconds since epoch
-
'MILLIS': milliseconds since Epoch
-
'MICROS': microseconds since Epoch
-
'NANOS': nanoseconds since Epoch
-
'JULIAN_DATE': days since Epoch
-
'DECIMAL_DATE': same as 'DEFAULT_DECIMAL'
-
Any valid strptime format. Optional if the value is already a datetime field.
Output formats
TODATE accepts the following output format strings:
- "%Y" - year
- "%m" - month
- "%d" - day
- "%W" - yearweek number
- "%w" - day of week
- "%H" - hour
- "%M" - minute
Examples
- YYYYMMDD (canonical Looker Studio date):
"%Y%m%d" - Date Hour:
"%Y%m%d%H" - Year Week:
"%Y%W" - Year Month:
"%Y%m"
Notes
TODATE returns compatibility mode Date data types.