A relational database is a database consisting of relation variables (which are also called *relvars*, *R-tables* or just *tables*). The definition, manipulation and integrity rules of relational databases are based on relational operations equivalent to or similar to the Relational Algebra and Calculus.
Can someone please explain the difference between 3NF and BCNF to me? It would be great if you could also …
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mysql database-design relational-database database-schema database-normalizationA cross join performs a cartesian product on the tuples of the two sets. SELECT * FROM Table1 CROSS JOIN Table2 …
sql database join relational-databaseI have these four tables: PRODUCTS --------- PRODUCT_ID PRODUCT_TITLE (other fields) COLORS --------- COLOR_ID COLOR_NAME MATERIALS …
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