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Rating Stats for

joop

Rating
1439.51 (4,534,547th)
Reputation
3,308 (51,053rd)
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Title Δ
Good hash function for unordered set of ID's +2.86
Merge two files in C -1.21
PostgreSQL multiple CSV import and add filename to each column -0.16
Convert NOT IN to NOT EXISTS SQL firebird +1.36
Delete last two elements from linked list in C +0.43
SQL : How to state that no element of a set can be present in anoth... +1.39
How can I change old record by new record on postgresql? -0.39
Join elimination not working in Oracle with sub queries -0.93
Find (and possibly remove) duplicate entries in not straight forwar... 0.00
WHERE ... IN condition and multiple columns in subquery +1.39
How to make query that will return differences between two tables i... -0.32
Postgres GROUP BY looking at dates ranges -0.41
How to account for Postgresql rank() ties -0.93
Optimizing SQL query on table of 10 million rows: neverending query -1.58
Loading a big table, referenced by others, efficiently +0.62
SQL Retrieve rows that have all rows from other table -0.73
Short Circuit Intersect / Inner Join feature in SQL on a condition,... 0.00
How to simplify SQL Code with IF condition. (Postgresql) +1.52
Controlling a table's primary key value when running On Conflic... +0.58
How to get constraints on indexes? 0.00
Postgresql - retrieving referenced fields in a query +0.63
Improving IO performance for merging two files in C +0.45
Select objects from table where ids in set and sort result the same... +0.03
How to differentiate between “no child rows exist” and “no parent r... +1.24
libev loop uses 99% of the CPU while idle +2.41
Remove vowels from a character string, Stack smashing error -0.43
primary key sequence does not exist 0.00
PostgreSQL: Find permission for element, traverse up to root -0.89
Count total number of duplicate rows in a table +0.14
Copy command postgres append to csv file 0.00
WITH RECURSIVE only returning the non-recursive term 0.00
postgresql join on max(date) and another index -0.81
identify duplicate data in a table +0.09
Binary tree with structs (in C) -1.71
Stop reading when reading mutliple files (without goto) -0.68
PostgreSQL statement caching interfering with expected results 0.00
Postgresql doesn't use index -0.32
SQL Update with Subquery in Where clause +0.08
sql window function to detect change in column values 0.00
How can I write a tail recursive using Plpgsql language? 0.00
Most convenient way to deallocate multiple memory pointers? -0.41
C How do i cast a scalar type to a non scalar and backwards? -1.14
Looking for a simpler alternative to a recursive query +0.28
Why does a slight change in the search term slow down the query so... -0.98
Is it possible to order by substrings in postgreSQL? -1.21
Combining "NOT" and "AND" in SQL (MS Access spe... +0.61
Calling main from another function -2.00
Foreign key to nullable column 0.00
Table analysis in SQL (multiplication) -1.15
reading a binary file with mmap() 0.00