How to Convert a column having one timestamp to another timestamp in Azure Data Factory

问题

I have column ABC where timestamp is of format dd/MM/yyyy HH:mm:SS (11/04/2020 1:17:40).I want to create another column ABC_NEW with same data as old column but with different timestamp 'yyyy-MM-dd HH:mm:SS'.I tried doing in azure data factory derived column using

toTimestamp(column_name,'yyyy-MM-dd HH:mm:SS') but it did not work it is coming as NULL. Can anyone help?

回答1:

It's a 2-step process. You first need to tell ADF what each field in your timestamp column represents, then you can use string conversions to manipulate that timestamp into the output string as you like:

toString(toTimestamp('11/04/2020 1:17:40','MM/dd/yyyy HH:mm:ss'),'yyyy-MM-dd HH:mm:SS')

回答2:

Data Factory doesn't support date format 'dd/mm/yyyy', we can not convert it to 'YYYY-MM-DD' directly.
I use DerivedColumn to generate a new column ABC_NEW from origin column DateTime and enter the expression bellow：

toTimestamp(concat(split(substring(DateTime,1, 10), '/')[3], '-',split(substring(DateTime,1, 10), '/')[2],'-',split(substring(DateTime,1, 10), '/')[1],substring(DateTime,11, length(DateTime))))

The result shows:

来源：https://stackoverflow.com/questions/63491065/how-to-convert-a-column-having-one-timestamp-to-another-timestamp-in-azure-data