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philipxy

Rating
1512.61 (54,505th)

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11,699 (12,666th)

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Title	Δ
Redis vs MySQL for simple database	0.00
where to place the notifications entity in my ER?	0.00
Database- Relational Algebra natural joins 2 tables consist 2 same...	-1.77
Designing media and lesson tables for two 1:n relationships	+0.02
What kind of data model is this	0.00
How to get redundant consistent (duplicate) data from the database...	+0.01
Oracle SQL sub query vs inner join	0.00
projecting functional dependencies onto another relation	-1.58
How to structure a database schema to allow for the "1 in a mi...	+2.44
Does this diagram have redundancy?	0.00
Using relational algebra, find those drinkers who can find all the...	0.00
Relational algebra, without use of division operator	0.00
Core Data design principles	-0.25
Relational Algebra Cross Product and Natural Join	0.00
Why is the Dependent entity considered to be a weak entity in this...	0.00
Attribute that implies different foreign keys	-0.72
Why avoid special characters in table name?	0.00
Definition of 3NF	0.00
Third (?) normal form of a relation	+0.52
Can't decide whether normalization or de-normalization would work	-0.49
Why are quantifiers needed in Tuple Relational Calculus?	0.00
How can Hard Deletes work when Foreign Keys are involved	-0.25
How to remove duplicate rows without losing the ability to do analy...	+0.05
Concurrent Processes using fork()	-0.47
Are There Bidirectional Relational Databases?	0.00
How to write relational algebra for the following?	+0.25
Determining if this data is really in 4th normal form?	0.00
Why does "zero" results in COUNT appear or not when placi...	+0.36
What is the better database table structure for storing a single ro...	-0.27
Should I avoid duplicate entries in a database?	+0.51
Self-join on a non-key column	-0.48
One to one correspondance of entities when building a table	-0.02
Property of functional dependencies	-1.63
Cannot add or change a record because a related record is required...	+0.09
Database design to reduce dependency on "look up fields"	0.00
Is there a reason to have an integer primary key column not also an...	0.00
A Foreign key referencing multiple unique key	-1.30
MySQL Does having two routes connecting information between two tab...	0.00
Delete and foreign key constraint SQL	-1.76
Query performance with Left Join vs Inner Join - MySQL	+0.01
Is a database design's normal form the least of the normal form...	+1.88
For a composite foreign key, is a/why is a composite UNIQUE constra...	-1.88
A more effective way to structure database for pivots	0.00
SQL - Schema Design for Child becoming Parent	+0.10
Database design: multiple unary relationships on same entity	0.00
Understanding Database Normalization - Second Normal Form(2NF)	+1.02
SQL JOIN USING and WHERE	0.00
Designed PostGIS Database...Points table and polygon tables...How t...	-0.47
how to put alias inside join statement	0.00
Normalising a database to reduce dependency	+1.46