relational-algebra
SQL to Relational Algebra
How do I go about writing the relational algebra for this SQL query? Select patient.name, patient.ward,[详细]
2023-01-04 15:50 分类:问答subscript for a join (\bowtie) operation in LyX/LaTeX
I\'m using LyX to write some R开发者_JAVA百科elational Algebra queries. I\'m using the \\bowtie symbol for the join operation but when I try to put a text in subscript directly under the symbol, I get[详细]
2023-01-01 02:33 分类:问答Help to translate SQL query to Relational Algebra
I\'m having some difficulties with translating some queries to Relational Algebra. I\'ve a great book about Database Design and here is a chapter about Relational Algebra but I still seem to have some[详细]
2022-12-22 23:10 分类:问答Relational algebra - what is the proper way to represent a 'having' clause?
This is a small part of a homework question so I can understand the whole. SQL query to list car prices that occur more than once:[详细]
2022-12-17 13:04 分类:问答SQL Query theory question - single-statement vs multi-statement queries
When I write SQL queries, I find myself often thinking that \"there\'s no way to do this with a single query\".When that happens I often turn to stored procedures or multi-statement table-valued funct[详细]
2022-12-15 20:06 分类:问答Relational Databases and Mathematics? [closed]
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.[详细]
2022-12-11 05:25 分类:问答