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Vamsi Prabhala

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1602.23 (1,683rd) 		Reputation
42,592 (2,548th)
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Title Δ
Count per category +0.67
Aggregate fields selectively based on MAX(value) -2.53
Oracle SQL to Get output like that using cross tabulation 0.00
R, sqldf and avg for ratio average 0.00
SQL query to compute calculations from different rows of the same t... +1.47
MYSQL - Count number of rows in each day grouped by another field -0.82
Counting items in a column using SQL -0.73
Select users that have an action on two different days with one of... -2.49
How to conditionally count rows from another table WITHOUT USING A... 0.00
select time in and time out for different shift +0.26
Retrieving column values pertaining to MIN(date) and MAX(date) in a... 0.00
Oracle Select specific string from table plus following characters +1.53
How to use a multi-element string for a IN sql query? +0.28
How to cleanup records that haven't changed -0.43
Cumulative distinct count with Spark SQL -0.11
Oracle query to find if a column in Table has any special character... +0.28
t-sql end of month insert 0.00
Grab AVG score of the highest score for each test +1.45
Combine selected data into same row based on column id (order) -0.21
How to find the highest value in a year and in all months -0.32
How to aggregate and make a ratio between two fields from a CTE -0.47
Build SQL query that summarizes total values for different categori... +1.55
Table returning cumulative sum +1.56
How to find rows missing by every group -2.40
Join 2 tables to get all raws. Get all distinct join columns 0.00
Delete duplicate row based on condition in Oracle -0.34
How do you join on only the earliest subsequent date? 0.00
Calculate a sum of cumulative product over a window frame -1.66
Select Single Field in two Column (Mysql) +0.28
SQLServer Select Query GROUP BY HAVING across two fields +1.58
Count first occurring record per time period 0.00
SQL query to get column of the next row to be of column of a row an... 0.00
SQL - Return values that meet all criteria -2.55
How do I get the id tied to the maximum date, grouped by a second i... 0.00
Greatest n per group while also returning content -0.13
Postgresql selecting specific set of records based on a field value -0.45
over order by rows with variable -0.44
postgreSQL- Count for value between previous month start date and e... +0.29
Oracle turn rows into columns -2.45
SQL Server grouping rows +0.33
Select highest date from different columns in a row in SQL +0.84
group by with "holes" in the middle +0.20
How do I conditionally merge rows based on rows difference in Postg... +1.24
SQL* Loader Handling formated dates 0.00
Redshift convert dates to unix timestamps 0.00
Select the max and second max value from a select, and group them? -1.20
A Column to count number of distinct values in column X based on co... +1.55
How do I calculate the percentage of a value in a column based on c... -0.46
Using a WHERE NOT EXISTS -0.38
sql in oracle to find ratio with grouping by a column +0.84