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TommCatt

Rating
1446.03 (4,533,573rd)
Reputation
4,669 (35,607th)
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Title Δ
Can I use one part of my primary key as a foreign key? +0.60
How to ignore unique Index on multiple columns based on column valu... -0.48
Structuring Tables for Estimates and Jobs 0.00
Manufacturing process cycle time database design 0.00
I want to remove redundancy in table fields in my database design +0.81
Database structure, primary and foreign keys +2.67
An Unique Constrained ID for a Good Login System Database Design? 0.00
SQL where no match *for date range* in transaction table +0.57
Several boolean fields or one text field in database? 0.00
how to design the table convenient insert and select,and good design 0.00
LEFT JOIN count from another table -1.41
MySQL primary keys with two ID fields +0.59
Designing relationships around an inheritance structure 0.00
Losing indexing and performance when using SUBSTRB -1.57
Finding MAX(DATE) value in SQL -0.78
Split table vs. same values in multiple rows -1.53
Oracle SQL Query - Join when using MAX() function -0.43
Getting values from a TABLE using SELECT inside a TRIGGER (Oracle S... 0.00
DB design for sensor data (lots and LOTS of data) +0.09
Database design issue, arbitrary price per customer -0.33
How to check if there is a date overlap? -1.14
Assigning the rownnum values in a column in the table in ORACLE dat... +0.32
I want to make SQL tables that are updated daily yet retain every s... +0.38
Many to Many Relationship with extra field and 4th table foreign ke... +0.23
Does a weak entity need a partial key? 0.00
Is it bad practice to have a entity with no distinct attributes? 0.00
redundancy in the database vs efficiency in the code +1.11
Is a text column with a small number of distinct values a bad smell? 0.00
Which option would be better for historical information of a table? +1.62
Is having duplicate Database values better than querying more times? -1.33
How to Handle a great number of rows with SQL Queries and take only... +0.12
database normalization chaining -1.50
What is the number of columns that make table really big? -0.49
postgresql database design for ecommerce +2.42
How do I change design to prevent retrieving tickets by passing thr... 0.00
using Natural key as the ID of DomainObject or GUID + auto-incremen... +0.30
Should i create two seperate tables just because one different column +0.77
How can i fix my trigger to automatically determine if first donati... -1.53
Move frequently updated columns to separate table for better perfor... 0.00
Is This a Bad Database Practice? -0.39
Which column(s) for Primary Key(s) -1.30
How can i model groups of persons? +0.36
convert bigint to date so that I can use in where clause -0.23
Why performance of MySQL queries are so bad when using a CHAR/VARCH... -1.04
SQL: Find highest occurrence of a column value in a table? -0.48
How to avoid paying for the same item multiple times -0.38
Require only the latest record in the table using mysql +0.43
Database Designing One-to-One Relationship -1.81
Is there a way that an attribute can reference another attribute fr... 0.00
Functional dependencies for a relation with all prime attributes? -0.40