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9 Αυγ 2016 · This is a terse way to "turn a PostgreSQL date representation into an ISO 8601 string": SELECT to_json(now())#>>'{}'. It uses the #>> operator in combination with the to_json() function, which can both be found on this page: https://www.postgresql.org/docs/current/functions-json.html.
26 Σεπ 2024 · The PostgreSQL formatting functions provide a powerful set of tools for converting various data types (date/time, integer, floating point, numeric) to formatted strings and for converting from formatted strings to specific data types.
26 Σεπ 2024 · Date and time input is accepted in almost any reasonable format, including ISO 8601, SQL-compatible, traditional POSTGRES, and others. For some formats, ordering of day, month, and year in date input is ambiguous and there is support for specifying the expected ordering of these fields.
26 Σεπ 2024 · For formatting date/time values for display, see Section 9.8. The date_part function is modeled on the traditional Ingres equivalent to the SQL-standard function extract: date_part('field', source) Note that here the field parameter needs to be a string value, not a name. The valid field names for date_part are the same as for extract.
12 Ιαν 2024 · PostgreSQL is smart, and can figure out a date from a string if you provide the date in ISO 6801 format. How to Format Dates in PostgreSQL: Using the TO_CHAR function. The primary method to format dates in PostgreSQL is using the TO_CHAR function. TO_CHAR allows us to format date/time types into a string of a specific pattern. Here’s format ...
16 Ιουλ 2020 · The SQL standard, the ISO 8601 standard, PostgreSQL’s built-in catalog and backward compatibility together define a plethora of overlapping, customizable date/time related data types and conventions that is confusing at best.
Data Type Formatting Functions. The PostgreSQL formatting functions provide a powerful set of tools for converting various data types (date/time, integer, floating point, numeric) to formatted strings and for converting from formatted strings to specific data types. Table 9.21 lists them.
