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David דודו Markovitz

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1588.94 (2,388th) 		Reputation
25,428 (5,012th)
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SQL expressions as column name with Oracle 12c database -1.69
Select from table with many indexes 0.00
Columns participating in a foreign key relationship must be defined... -0.37
Data too long for column for longtext datatype - MySqlException 0.00
SQL: How to move columns into another table whilst also adding extr... 0.00
finding largest number of candidate keys that a relation has? +0.17
Count no of colons in col1 and trim the data after that total no of... 0.00
Finding records that exist in one table but not another (matching)... 0.00
Extracting characters from varchar strung in Oracle database -1.16
Comparing the days difference between 2 dates in oracle +0.29
Getting the oldest datas from a table that are older than a 100 days 0.00
How to unpivot and get a sum for each month + total? 0.00
SQL Server Concatenate Join 0.00
Splitting daterange into columns 0.00
How can I format the output of my SQL query to display nicely? 0.00
Why would the following command take down a server? -0.58
Handling large amounts of data in SQL -1.07
SQL with clause in stored procedure -0.81
Intervals in HiveQL 0.00
Dynamic delete in Oracle +2.34
Select data having count > 1 in any interval of 1 hour -1.24
Dynamic Insert in Oracle 0.00
SQL- Join on multiple tables -0.12
How to check the reason of changing the value of a column 0.00
mismatched input 'Not' expecting THEN in phase +0.09
How does implicit sorting in SELECT *,MIN(x) work in SQLite? -0.86
Oracle SQL - multiple column constrainst on single constrainst stat... -1.04
SELECT interval where the number of interval is from table (redshift) +2.10
how to optimize the mysql Query +0.06
String concatenation as an alias displays 0 in SQLite? 0.00
Get max value from consistent records -1.38
Get max value from consistent records +0.22
Substring in a column -0.12
Substring in a column +1.88
Substring in a column -2.12
Dispaying All Data Points between two ranges +1.32
Combine 2 tables which doesn't have any relationship +1.66
procedure created but not executing 0.00
Join table by string matching in Hive or Impala or Pig +1.03
MINUS vs NOT in where clause -2.05
Apache Drill SQL: Division fails when numerator > denominator 0.00
Oracle SQL casting string as date -1.44
Why is Oracle REPLACE function not working for this string? 0.00
Execution plan not as expected +1.67
Extract Distinct Special Characters in a Column using SQL Select +1.28
Why I must put "AS" clause at the end of subquery.? -0.92
Count how many times a value appears continuously in Hive/SQL 0.00
Duplicate value in XMLAGG and RTRIM SQL Query +0.44
how to group column as per its unique value and get count in to dif... -1.57
How to get dummy value for XML empty tag in table using Oracle? 0.00