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David Aldridge

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1501.24 (404,625th) 		Reputation
44,102 (2,420th)
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Title Δ
Does the Database Design of my program have a circular reference is... -0.03
Query performance issue with 226 million records 0.00
Integration of Oracle Database in a Rails Application 0.00
Is it possible to use both DECODE and SELECT STATEMENT? 0.00
Sequential scan rather than index scan 0.00
How to call ora_hash function inside control file in sql loader? +0.51
Quickest way to find out if record exist -1.16
left outer join with null values -1.25
How can I automate exporting of an Oracle table/view? +0.46
Rails & Heroku: Can't write into public directory 0.00
Oracle "Invalid Number" caused by to_char function 0.00
Is it safe to delete from an Array inside each? -0.99
Rails 4, order in has_many :through. It simply does nothing 0.00
rails 4, postgres and arrays -0.06
String primary key comprised of date and auto incrementing integer -0.57
Can I use oracle sql loader to update a column? 0.00
Reason why Odoo being slow when there is huge data inside the datab... 0.00
Oracle 11G - Performance effect of indexing at insert +0.83
Name for DB Entity Relationship Table and is it a good idea? +1.42
ActiveRecord: Exclude group if at least one record within it doesn&... +0.52
How to lock oracle table on WHERE condition? +0.51
Find strings in PostgreSQL and order by distance to beginning of st... -1.75
Updating two dependent columns using a single update statement in O... -0.57
How can I retrieve next n unlocked rows from Oracle? -0.20
How to update translation table for translation dictionary database 0.00
how to make trigger cannot delete table in oracle +0.43
Rails - Saving Objects with NOT NULL constraint -0.57
FInd the names of customers are interested in every artist +0.41
Rails 4 - Time Complexity: better to store a t.reference or to stor... -0.56
Reversing a specific Rails Migration, can't remove 0.00
How to TRIM in Oracle to only return the capital letter from a string +0.88
How to update big table from csv file/another table in Oracle +2.00
How to update big table from csv file/another table in Oracle -2.00
Response time degraded..Need suggestion on improving performance 0.00
Need only one match from a Left Join -0.57
Disadvantages and advantages of dividing a table into subtables +0.44
How to query has_one through relationship? -0.56
What is level of normalization HR Oracle Sample Database? 0.00
Complex Rails query using ActiveRecord on Many to Many relationship -0.07
SELECT STAR VS SELECT 1 in Oracle SQL to check existence -0.28
How to retrieve half of records from a table - Oracle 11g +1.87
Oracle query optimization with ROWNUM -0.95
Oracle can I use parallel hint in subquery? 0.00
Split a large query (2 days) into pieces to increase the speed in P... -0.62
Generate random ROWID -0.06
Use belongs_to association in Rails 4 -0.31
Unique usernames in 2 tables at different levels. Suitable database... -0.10
What is the correct way of checking if varchar2 is empty? +0.17
Optimal query in Ruby on Rails 0.00
plsql query to count between conditon and different months -0.06