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David דודו Markovitz

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1588.94 (2,388th) 		Reputation
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How does a SQL Recursive Query not run into an endless loop? 0.00
Query SQL Server with wildcard IN the database +0.42
Rename column with hyphen 0.00
SQL Server query to get continues occurences +1.60
SQL Select any other records if exist and select default if no others -0.53
SQL: Aggregate records within a group taking into account rows order 0.00
how to use mask in Oracle -0.66
Get all children with all parents in SQL tree structure with SQLite +0.43
SQL Server why is index not used with OR +2.20
How to create a Trigger that is active only during a specified time... 0.00
FULL OUTER JOIN unexpected results -0.13
SQL: Pick highest and lowest value (int) from one row +0.32
Speed up SELECT query on large table 0.00
Counting entries and pivot tables in SQL Server +2.01
SQL select statement avoiding duplicated rows based on primary key +0.01
Oracle SQL, is it possible to use a user-defined datatype property... +1.70
SQLite: Why is foreign key constraint not working here? -0.72
Trigger to check foreign key not working in PLSQL 0.00
How can I store and search for hyphenated/non-hyphenated url names... 0.00
What does "Encountered the symbol "Update" means?&qu... +0.07
SQL Server query is taking 3 min 40 Sec. How to improve the executi... 0.00
SQL find name of worker with maximum average score +0.43
SQL concatenate one of the columns in groups of 10 with LISTAGG() 0.00
Pairing Sequential Events on Postgresql 0.00
MySQL ignores index issue -0.51
MySQL: Foreign key constraint is incorrectly formed 0.00
Best database structure to implement a graph tree -0.06
Is there any way in Google Big Query to Left Outer Join one-to-one... +2.09
How to ensure that a table has only a single record with Is_Deleted... 0.00
Split MySQL fields by character count to the nearest full word? +0.42
Calculating decimal difference in minutes format +0.10
SQL Server CE: calculate same column values (problems are null'... +1.07
How to group and order with multiple tables +1.32
HIVE Sum Over query 0.00
Indexes in join with filter 0.00
oracle giving PL/SQL: numeric or value error: character to number e... +0.45
How can I store records with 500 CLOB fields? 0.00
How do i fix postgres.sql:10: ERROR: relation "users" alr... 0.00
Could you illustrate on query plan in mysql? 0.00
Oracle SQL - Join keys +1.29
Comparing two tables that doesn't have unique key -0.76
simple select is taking huge time on the table -0.05
How to improve performance of multiple joined table in sql query -0.43
SQL Parsing Strings -0.99
SQL slow when having subquery in in statement 0.00
Collect all Similar Persons to One Group -0.32
SQL error 150 Foreign key -0.55
SQL Server: run function for each row based on the provided row value -1.16
Fetch email address from NVARCHAR2 DATATYPE +1.48
How does the LIKE operator work in SQL 0.00