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Clodoaldo Neto

Rating
1558.74 (5,846th)
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79,063 (1,057th)
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Title Δ
optimise postgresql update +1.79
select top n rows for each key-value pair +0.13
Iterative summations in SQL -0.98
md5() works with literal, but not with column data +1.61
Exporting data from SQL Server to PostgreSQL +0.51
PostgreSQL SELECT Must Match Across Multiple Rows +0.18
Summing and ordering at once +0.73
write post error in the sort 0.00
Restart primary key numbers of existing rows after deleting most of... -0.26
How to insert/update data from one table into another table (postgr... -0.28
Dynamic alternative to pivot with CASE and GROUP BY -1.28
Renaming a column starting with '?column?' 0.00
Detecting rows with the same combination of numbers in the first tw... -1.10
Improving the performance of regex match for private IP addresses i... 0.00
Why Postgresql searches Text index faster than Int index? 0.00
Can this query be made without a subquery? -1.29
C++ Qt PgSQL custom character in database -0.00
Select rows with max value from groups of rows grouped by multiple... -0.74
Format string using given pattern and delimeter in PostgreSQL -1.30
Generate series of a month by week interval in Postgresql -1.31
Group by with multiple date columns +2.07
Make an SQL request that builds a 'result cache' without returning... -1.29
Alphanumeric case in-sensitive sorting in postgres +1.08
SQL join with 2 conditions +0.08
PostgreSQL 9.2--Agg query slow with count(distinct x) 0.00
Moving a PostgreSQL database from Windows to CentOS with different... 0.00
postgresql: SQL Query to merge the contents from multiple rows usin... 0.00
Iterate through rows, compare them against each other and store res... 0.00
Attempting to write PostgreSQL 9.0 function -0.72
How to list the train operators that use the second oldest trains (... -1.44
Conditional Order By 0.00
Select columns by choosing column multiple columns in SQL -1.05
Count the number of matching rows for high magnitude counts (100,00... -0.19
how do i return sum from array_to_string in postgresql 0.00
Determining relationship between rows using subqueries in PostgreSQL +0.47
Aggregate by selecting last element in postgres group by 0.00
PostgreSQL - properly change ID of table row +0.46
What's the equivalent of a DO block for Postgres < 9.0 0.00
Postgres SELECT GROUP BY most selling item by publisher -0.53
postgres: create table in database 0.00
SQL iterate through arrays 0.00
Is it worth Indexing day_of_week column? +2.00
to_timestamp -- ends in 04 or 05 0.00
PostgreSQL and word games -0.15
How to dynamically test and build a complex PostgreSQL expression? +1.86
Special ORDER BY with CASE statement - In need of guidance -1.69
Postgres: PreparedStatement incorrectly identifying datatypes +0.01
Storing and querying interval tree in PostgreSQL -0.01
Retruning table in Postgres without defining its structure 0.00
Postgres constraint ensuring one column of many is present? -0.67