topic Re: Difference between tHashRow and tAddCRCRow in Talend Studio

Difference between tHashRow and tAddCRCRow

Alpha549 — Fri, 15 Nov 2024 22:43:12 GMT

Hello everyone,

I came accross this custom component on Talend Exchange :

TalendExchange_tHashRow

I would like to know what the difference is between tAddCRCRow component and this one ?

tHashRow seems to be more flexible as we can choose the algorithm.

Thank you ! 🙂

Re: Difference between tHashRow and tAddCRCRow

Anonymous — Fri, 22 Jul 2022 08:00:21 GMT

Hello,

Here is online component reference about: TalendHelpCenter: tAddCRCRow

It provides a unique ID which helps improving the quality of processed data. CRC stands for Cyclical Redundancy Checking.

tAddCRCRow calculates a surrogate key based on one or several columns and adds it to the defined schema.

Best regards

Sabrina

Re: Difference between tHashRow and tAddCRCRow

Alpha549 — Fri, 22 Jul 2022 10:49:32 GMT

Hello Sabrina,

I also saw that tAddCRCRow generates a numeric key, whereas tHashRow is an alpha numeric key, with more characters (depending on the chosen algorithm).

Thank you !

The topic is solved 🙂

Re: Difference between tHashRow and tAddCRCRow

Anonymous — Mon, 25 Jul 2022 03:44:45 GMT

Hello,

Here is an online documentation about: TalendHelpCenter: Installing a custom component

Hope it helps.

Best regards

Sabrina

Re: Difference between tHashRow and tAddCRCRow

Alpha549 — Mon, 25 Jul 2022 20:50:21 GMT

Thank you Sabrina 🙂