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Filter Expression syntax for String Tag

Question asked by MariaValeria_Fornaro on Mar 19, 2020
Latest reply on Mar 23, 2020 by MariaValeria_Fornaro

Hi all, 


I have a PI String Tag (For example the tag name is TAGTEST) that contains several infos separated by comma.



I would like to use Filter Expression in PI Datalink to extract all rows that contain the word "HELLO" in the string from the indicated start time and end time. 


which is the correct syntax to use in Filter Expression field?


Thanks in advance