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The following example converts a timestamp literal to a character string. select to_char(timestamp '2009-12-31 23:15:59','HH24:MI:SS'); to_char ---------- 23:15:59

Stack Overflow

stackoverflow.com › questions › 74858155 › redshift-to-char-change-date-to-string

Redshift TO_CHAR change date to string - Stack Overflow

select * from tableA where to_char(date,"yyyyMMdd") = "20221220" The expected result is change the date value from date to string by using to_char so that it can performs the

Dwgeek

dwgeek.com › home › redshift type conversion functions and examples

Redshift Type Conversion Functions and Examples - DWgeek.com

March 1, 2023 - Converts the specified value (which can be a date, timestamp, real, double precision, or numeric value) to a character string. The TO_CHAR function is one of very useful Redshift type conversion function when you are working with miscellaneous data sets.

Coginiti

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Redshift TO_CHAR for Dates - Coginiti

February 1, 2024 - Mastering date formatting in Redshift not only improves the presentation of data but also significantly enhances the analytical capabilities of data professionals. These functions are pivotal in transforming raw time-based data into insightful, actionable information. SELECT TO_CHAR(current_date, 'Day, W') AS formatted_date FROM table;

AWS

docs.aws.amazon.com › amazon redshift › database developer guide › sql reference › sql functions reference › data type formatting functions › numeric format strings

Numeric format strings - Amazon Redshift

March 19, 2026 - For examples of formatting numbers as strings, see TO_CHAR.

Coffingdw

coffingdw.com › formatting-dates-on-amazon-redshift-3000-examples

Formatting Dates on Amazon Redshift – 3000 Examples – Software connecting all databases

January 19, 2024 - This blog will brilliantly break down and explain everything about the TO_CHAR command so you will easily format an Amazon Redshift date in any way you desire. Amazon Redshift uses the TO_CHAR command to transform raw date or timestamp data to format it as you want it presented.

AWS

docs.aws.amazon.com › amazon redshift › database developer guide › sql reference › sql functions reference › data type formatting functions › cast function

CAST function - Amazon Redshift

In a case like the previous sample, you can gain additional control over output formatting by using TO_CHAR.

Stack Overflow

stackoverflow.com › questions › 25673845 › redshift-to-char-format-not-giving-desired-results

to char - RedShift to_char format not giving desired results - Stack Overflow

Top answer

1 of 2

upper(to_char(GetDate(),'YYYY-MM-DDtHH24:MI:SS.0'))

works too.

2 of 2

This ended up working

select concat(to_char(timestamp,'YYYY-MM-DDT'), to_char(timestamp,'HH24:MI:SS.0')) from table;

AWS

docs.aws.amazon.com › amazon redshift › database developer guide › sql reference › using sql › basic elements › data types › character types

Character types - Amazon Redshift

An NCHAR column without a length specification is converted to a CHAR(1) column. An NVARCHAR column without a length specification is converted to a VARCHAR(256) column. You can create an Amazon Redshift table with a TEXT column, but it is converted to a VARCHAR(256) column that accepts ...

Bmc

blogs.bmc.com › amazon-redshift-write-sql-statements

Writing SQL Statements in Amazon Redshift

to_char() extracts any portion of the date that you want, such as YYYY year or MM month number. We use the in() statement to select the months. The order statement uses a 1. That means use the first column returned by the query. That's an alternative to typing the column name.

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AWS

docs.aws.amazon.com › amazon redshift › database developer guide › sql reference › sql functions reference › string functions › chr function

CHR function - Amazon Redshift

The CHR function returns a CHAR string if an ASCII character matches the input value. If the input number has no ASCII match, the function returns NULL. To return the character that corresponds with ASCII code point 0, use the following example.

Stack Overflow

stackoverflow.com › questions › 68564332 › use-redshift-query-result-as-to-char-format

sql - Use Redshift query result as to_char format - Stack Overflow

Top answer

1 of 1

SELECT is a SQL operator that work upon data. SQL is compiled before it can operate on data. The basic answer is that this won't work as written.

What you are trying to achieve isn't clear in the question - change date output format for some reason for some set of queries but not others? In the general case you will need to modify the SQL that goes to the compiler which will mean reading some configuration and merging this into the SQL text. If the use case is more limited there may be another way to achieve the desired result but only within some set of limitations.

Some possibilities - You could set a SQL variable with the format literal. Your client can read info and modify the query itself if it is capabile. A stored procedure could be used. A SQL modifier (pg_bouncer?) could live between the client and the cluster and substitute the string based on some other factors. Each of these has limitations and costs.

If you can describe the use case it could generate different / better ways.

Dwgeek

dwgeek.com › home › amazon redshift date format conversion and examples

Amazon Redshift Date Format Conversion and Examples - DWgeek.com

March 1, 2023 - Convert Redshift timestamp to YYYYMMDD format: Below example demonstrate conversion of date value to ‘YYYYMMDD’ format using to_char and to_date function:

Sisense Community

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Manipulating Dates, Datetimes, Unix Timestamps, And Other Date Formatting Tricks In Redshift | Sisense

October 20, 2021 - Dates aren't stored in the database in the format you want to display? You can use the Redshift TO_CHAR() function to create a string-formatted extract in order to display dates however you want!

OBSTKEL

obstkel.com › home › 15 redshift date functions frequently used by developers

15 Redshift date functions frequently used by developers

December 7, 2022 - To convert a date to a string use the Redshift to_char function as below.

AWS

docs.aws.amazon.com › amazon redshift › database developer guide › sql reference › sql functions reference › data type formatting functions › datetime format strings

Datetime format strings - Amazon Redshift

For examples of formatting dates as strings, see TO_CHAR.

BMC Software

bmc.com › blogs › amazon-redshift-write-sql-statements

Writing SQL Statements in Amazon Redshift – BMC Software | Blogs

Then Redshift provides the to_char() function to print out any part of the date you want, like the hour, year, minute, etc.

AWS

docs.aws.amazon.com › amazon redshift › database developer guide › sql reference › sql functions reference › data type formatting functions › convert function

CONVERT function - Amazon Redshift

The following query uses the CONVERT function to convert a column of decimals into integers · SELECT CONVERT(integer, pricepaid) FROM sales WHERE salesid=100; This example converts an integer into a character string.

PopSQL

popsql.com › learn-sql › redshift › how-to-group-by-time-in-redshift

How to Group by Time in Redshift - PopSQL

SELECT to_char(created_at, 'YYYY-MM-DD HH24:MI'), -- leave out :MI if you want to group by hour count(1) FROM users GROUP BY 1;