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Tag relations - Это страница 7 - GeneraCodice
Counting distinct entries in a column using relational algebra
https://www.generacodice.com/ru/articolo/2601302/counting-distinct-entries-in-a-column-using-relational-algebra
database-design
-
relational-algebra
-
relational-theory
-
table
-
relations
dba.stackexchange
Proof that Inner Join is Commutative
https://www.generacodice.com/ru/articolo/2583012/proof-that-inner-join-is-commutative
join
-
relational-algebra
-
relational-theory
-
relations
dba.stackexchange
In a school database, do I need to have repeating data when a student can also be a teacher?
https://www.generacodice.com/ru/articolo/2571269/in-a-school-database-do-i-need-to-have-repeating-data-when-a-student-can-also-be-a-teacher
database-design
-
relations
dba.stackexchange
DB architecture: What if a table is part of another table
https://www.generacodice.com/ru/articolo/2554398/db-architecture-what-if-a-table-is-part-of-another-table
architecture
-
table
-
relations
dba.stackexchange
Meta-relationships (Relationships between relationships) versus tuples
https://www.generacodice.com/ru/articolo/2549411/meta-relationships-relationships-between-relationships-versus-tuples
database-design
-
many-to-many
-
relations
dba.stackexchange
Structure a database for a Blog
https://www.generacodice.com/ru/articolo/2545639/structure-a-database-for-a-blog
mysql
-
database-design
-
relations
dba.stackexchange
What is the cardinality of entity relationship between Employee and Department?
https://www.generacodice.com/ru/articolo/2537668/what-is-the-cardinality-of-entity-relationship-between-employee-and-department
database-design
-
erd
-
transaction-log
-
relations
dba.stackexchange
How can I avoid this circular relation?
https://www.generacodice.com/ru/articolo/2534721/how-can-i-avoid-this-circular-relation
database-design
-
relations
dba.stackexchange
Conditional relationships? One-to-many relationship using a pivot table for only a type of entity
https://www.generacodice.com/ru/articolo/2530649/conditional-relationships-one-to-many-relationship-using-a-pivot-table-for-only-a-type-of-entity
database-design
-
condition
-
subtypes
-
relations
dba.stackexchange
Postgres relationship statement [closed]
https://www.generacodice.com/ru/articolo/2525396/postgres-relationship-statement-closed
postgresql
-
relations
dba.stackexchange
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