26 April 2022 Splitting strings with the Qlik SubField() function Share this message Every Friday at Bitmetric we’re posting a new Qlik certification practice question to our LinkedIn company page. Last Friday we asked the following Qlik Data Architect certification practice question about the Qlik SubField() function used to split strings based on a common delimiter: The correct answer is C: SubField() Without going in too to much depth of whether #HoursWorked is a measure we should be scared of or not, we guess this question hasn’t taken too much of your time this week, seeing how unanimously this has been answered. A transformation which is pretty commonly encountered is separating values from a single field. Whether it is a comma separated value, a composed field or retrieving information from a file location, it is often necessary to extract only part of a field value. For this question SubField() would be the syntax of choice. The power of SubField() lays in the fact that we separate the values based on a given delimiter, rather then a length. While in this case we could have simply said Right(‘$(vField’), 4) to retrieve the right four characters, this wasn’t part of the options, nor is it the most elegant. In many cases this won’t suffice, because the field we are trying to separate has a variable length or the whole string consists of more than two words. Qlik SubField() syntax The SubField() function has the following syntax: SubField(text, delimiter[, field_no ]) Reviewing the answer; our text is the variable vField which is split by a single space as the delimiter and we would like to return the second field number to retrieve only the year number from the string. Another thing to know about SubField() is that the field number we would like to return can be either a positive or a negative number. If we use a positive number, the return value would be the first field before the set delimiter and work its way subsequently backwards. If we use a negative number, the field value after the last delimiter would be returned and works its way subsequently forwards. To visualize: SubField(‘This is a test’, ‘ ‘, 3) returns ‘a’ SubField(‘This is a test’, ‘ ‘,-1) returns ‘test’ That’s it for this week. See you next Friday? More from the Bitmetric team Take your Qlik skills to the next level! Since 2013, the Masters Summit for Qlik is the premier advanced training for Qlik. Join us in Vienna and take your Qlik skills to the next level. Join the team! Enjoying these challenges? We have many more, and we’ll even pay you to solve them 😉 Check out our job opening. Friday Qlik Test Prep Functions Qlik Solution How can we help? Barry has over 20 years experience as a Data & Analytics architect, developer, trainer and author. He will gladly help you with any questions you may have. Call us Mail us 25 April 2024 Over 3000 Qlik Sense servers still vulnerable to Cactus ransomware In November of last year we reported on how two critical vulnerabilities in Qlik Sense Enterprise for Windows were exploited in the Cactus ransomware campaign. As of today, over 3000 vulnerable Qlik Sense servers remain connected to the Internet. New Release Qlik Vulnerability 29 March 2024 Dealing with missing and late arriving values with OtherSymbol and other solutions Learn effective strategies for handling missing or late-arriving dimension values in Qlik with our expert guide. Discover how to use OtherSymbol, WHERE NOT EXISTS, and other solutions to deal with early-arriving facts Data Model Friday Qlik Test Prep Qlik Solution 22 March 2024 Picking the right color palette for your visualization Discover how to choose the perfect color palette for your data visualizations with our expert guide. Learn about single, categorical, sequential, and diverging color palettes to enhance your charts and graphs. Ideal for data analysts and visualizers. Friday Qlik Test Prep Qlik SenseTheme Visualization
25 April 2024 Over 3000 Qlik Sense servers still vulnerable to Cactus ransomware In November of last year we reported on how two critical vulnerabilities in Qlik Sense Enterprise for Windows were exploited in the Cactus ransomware campaign. As of today, over 3000 vulnerable Qlik Sense servers remain connected to the Internet. New Release Qlik Vulnerability
29 March 2024 Dealing with missing and late arriving values with OtherSymbol and other solutions Learn effective strategies for handling missing or late-arriving dimension values in Qlik with our expert guide. Discover how to use OtherSymbol, WHERE NOT EXISTS, and other solutions to deal with early-arriving facts Data Model Friday Qlik Test Prep Qlik Solution
22 March 2024 Picking the right color palette for your visualization Discover how to choose the perfect color palette for your data visualizations with our expert guide. Learn about single, categorical, sequential, and diverging color palettes to enhance your charts and graphs. Ideal for data analysts and visualizers. Friday Qlik Test Prep Qlik SenseTheme Visualization