The CBSE Class 12 Informatics Practices exam will be held on March 25. As 50% of the 2026 paper is expected to be competency-based, students should focus on high-weightage topics like DataFrames, SQL ...

Traditional equi-join relies solely on string equality comparisons to perform joins. However, in scenarios such as ad-hoc data analysis in spreadsheets, users increasingly need to join tables whose ...

Two tables are associated by matching a certain field in table A with the primary key of table B (By field association, as we explained in the previous essay, it is the equivalence of corresponding ...

JOINs are long-standing SQL headaches. As the number of tables to be joined increases, coding becomes error prone. The complicated statements for achieving JOINs make ...

Abstract: We study the problem of continuous relational query processing in Internet-scale overlay networks realized by distributed hash tables. We concentrate on the case of continuous two-way ...