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1498.95 (3,811,804th)

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11,026 (13,599th)

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Title	Δ
SQL Query to get difference between adjacent records	-0.51
Is a FULL OUTER JOIN neccessary for this situation?	-0.48
Optimizing a query - using a field or using another table	+1.32
MySQL - move a subset of a table into another table	-0.03
Product Analytical data in TXT files (using YAML)	+0.08
Is it possible to optimize these SQL queries further?	-0.79
How to display UTF-8 characters in phpMyAdmin?	-0.77
How do I create a SQL Distinct query and add some additional fields	-1.30
Query with multiple EXIST	+0.47
Problem with joining to an empty table	+0.25
count items in each category	+0.05
mysql join on two indexes takes long time!	+0.24
MySQL Limit selection by selecting rownum as start value	+0.50
What open source C projects are worth studying for learning good de...	-0.21
MySQL Update Query Optimization - Subqueries or not?	+0.56
Unable to retrieve value returned from mysql function	0.00
How can I improve performance of average method in SQL?	+0.30
total number of rows of a query	-1.17
Storing actively updated fields in the database	+1.31
MySQL indexing for multiple count(*) queries	+0.50
Is O(1) access to a database row is possible?	+0.66
Advanced SQL date subtraction	0.00
MySQL - How to simplify this query?	-1.37
Copying a MySQL database over HTTP	-0.12
T-SQL Query Problem	-0.56
Return multiple values in one column within a main query	-0.16
Time Complexity of reading from mysql database	+2.29
Why doesn't wordpress create an unique index for `wp_users`.`user_l...	-0.49
optimize mysql count query	-0.35
Should not OLAP database be denormalized for reading performance?	-0.82
Nested queries in check SQL statement	+1.74
Importing MS Access dataabse in Mysql database	-0.02
How to query the database for a between-value and sort by the neare...	-2.16
Detect when 2 moving objects in 2d plane are close	-0.16
Select optimization in Access	-1.77
MySQL selecting rows with a max id and matching other conditions	-0.81
MySQL link tables - view, foreign keys or trigger?	-0.02
Limiting MySQL result to one if results match	-0.19
Mysql complexity on select in different ways	0.00
mysql: getting affected rows of an insert to a temporary table	+1.14
Mysql primary key when using INSERT INTO ... ON DUPLICATE KEY UPDATE	0.00
How can I avoid NULLs in my database, while also representing missi...	-0.94
Whats is efficient database design in sqlite when I only need to in...	0.00
Fastest method to search for a specified item on an image?	-0.51
How to see if a user was not active in all weeks/or active once eve...	-0.02
MySQL Workbench rename constraint	+0.41
ETL Processing Design and Performance	+0.22
Postgresql pivot? Crosstab?	-0.51
Relational Database Design (MySQL)	+0.04
How to sort by numbers first with Oracle SQL query?	+2.76