The introduction of programming knowledge for elementary and middle school students is needed to improve children's thinking and creativity. As educators who pay attention to programming-based education, lecturers of the Karangturi National University provide training on programming or coding for educators and general public. This comunity service aims to provide insight to parents, educators, and children about programming as well as skills that are needed to create digital applications. This community service activity was carried out in 2 sessions, the introduction of coding applications for children such as scratch, code.org, CodeCombat, Appinventor, and the training on the use of these applications for participants. The training material includes the explanations of benefits of various applications, the differences implementation of those applications and the evaluation of the applications by participants. Throught the community service, it is expected that participants can understand the basic skill of programming and able to deliver and taught the material to children.

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Along with the number of restaurants located in the city of Kudus, making a problem for a consumer or tourists who want to choose a restaurant. This can even take a lot of time because consumers are faced with the many choices of restaurants. Therefore, a decision support system is needed to assist consumers or tourists in choosing a culinary place. In determining the selection of culinary places in the city of Kudus, using the Weighted Product method to determine the culinary place with several criteria: the number of menus, the average price, wifi, and corner charger. The culinary site selection system with weighted product method is implemented in the mobile phonebased system. The mobile phone application is made to facilitate the admin and user choose culinary or restaurant with the process used in determining the culinary place in the city of Kudus by using criteria inputted by the user. This app is also in add google maps, so direct users can knowing location culinary location or restaurant that has become his choice.

Large and complex databases that exist on a system can result in poor performance such as increasing access time and costs on a system. There are various ways to reduce the time and cost of data access and improve the performance of a database, one of them is by designing a Distributed Database. It is not known how many methods can be used to design a distributed database. This study aims to identify a distributed database design method using the Systematic Literature Review (SLR) method whose data were obtained from related journals from 2012–2022. This review is helpful for researchers as well as practitioners, for researchers this research will help them to see trends in the field of vertical fragmentation in distributed databases.