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philipxy

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1512.61 (54,505th) 		Reputation
11,699 (12,666th)
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Title Δ
Best Solution - Ternary or Binary Relationship 0.00
Should I make a foreign key that can be null or make a new table? +1.65
Relational database design for a a specific Scenario -0.49
Which table should be Parent table and which should be child table? -0.89
Database modelling for 2 many-to-many realations +0.51
Database Junction Tables - Default Flag Column 0.00
Best way to key a table that is unique on two attributes for perfro... 0.00
JPQL Right Join -0.20
Average ratio between two columns +0.54
Mapping two mapping tables together? 0.00
Relational algebra - recode column values 0.00
Magento sql query for product details 0.00
Issues with SQL query using SUM +0.71
How can I avoid using the NOT IN and the SUBSELECT in the following... -0.49
SQL/JPA Criteria query for inheritance object model using AND 0.00
How does an aggregate function affect the columns queried along wit... -1.26
SQL Inner Join in Subqueries +2.30
Why alter command is referred as DDL and not DML? -1.22
SQL Server , inserting existing rows into the same table 0.00
Is there any drawback when tying a foreign key to a non-primary key? 0.00
Getting Error "No matching Unique or Primary key for the Colum... +0.51
What is a Set with regard to databases? 0.00
Creating SQL composite Key Logic 0.00
Order of query execution 0.00
Maximum number of tuples in this relation R , ER model? 0.00
Inner Join vs Natural Join vs USING clause: are there any advantages? +1.46
MySql - Where do you need to list the tables from which to extract... -1.64
A Database Design Query 0.00
SQL Querying Incomplete Result +1.74
Multi-Level / IF-statement JOIN in SQL? Is it possible? +0.33
How to restrict by an aggregate function without using it +0.54
Firebird can't recognize calculated column in group by clause +0.51
www.sql-ex.ru #14 0.00
ER model: when to add a relationship and when not to add +0.52
I am attempting to decipher this SQL query I am a bit confused -1.67
Spark replacement for EXISTS and IN 0.00
MapReduce: How to join 2 tables: R(a,b) x S(c,d) where b<c 0.00
Complex table Join at sql +1.06
SQLAlchemy + MySQL joins strange behaviour 0.00
Can we use '=' for compairing with NULL in sql -0.98
sql select column via column number/index/position instead of colum... +0.23
Raw SQL to SQLAlchemy -0.47
mysql query return null row -0.50
Ten to zero to many relation SQL -1.31
Non-unique many-to-many table design 0.00
Database design: invoice modeling 0.00
Do all relational database designs require a junction or associativ... -0.78
Table design for an ordered tree with composite keys 0.00
Database Normalisation - Two tables with the same primary key? +0.41
Recoverability of schedule 0.00