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Top Questions
20
votes
Measuring Query Performance : “Execution Plan Query Cost” vs “Time Taken”
sql
sql-server
sql-server-2005
optimization
sql-execution-plan
asked Feb 19 '09 at 10:40
stackoverflow.com
8
votes
Performance Tuning SQL - How?
sql
performance
query
asked Jan 21 '09 at 0:08
stackoverflow.com
5
votes
Reducing redundancy/duplication in SQL Code
sql
sql-server
coding-style
asked Apr 7 '11 at 9:32
stackoverflow.com
5
votes
Analyising Implict CAST
sql
sql-server-2005
implicit-conversion
query-plans
asked Aug 16 '12 at 14:50
stackoverflow.com
Top Answers
98
Standard use of 'Z' instead of NULL to represent missing data?
stackoverflow.com
27
ALTER TABLE without locking the table?
stackoverflow.com
24
How do I preview a destructive SQL query?
stackoverflow.com
16
When do I need to use Begin / End Blocks and the Go keyword in SQL Server?
stackoverflow.com
16
Is there ever a logical reason to use 1=1 in a where clause?
stackoverflow.com
12
Update with CTE and row-numbers as sequence or TSQL update query with ROW_NUMBER()
stackoverflow.com
11
Are database triggers evil?
stackoverflow.com
11
Getting only Month and Year from SQL DATE
stackoverflow.com
10
sql cross join - what use has anyone found for it?
stackoverflow.com
10
SQL indexing in a key/value database?
stackoverflow.com
10
SQL Server Join In Order
stackoverflow.com
10
COALESCE Function in TSQL
stackoverflow.com
9
Random Weighted Choice in T-SQL
stackoverflow.com
9
How to get difference between two rows for a column field?
stackoverflow.com
9
how to format float value to have only 2 digits after decimal in iOS?
stackoverflow.com
9
Nested Select Statement on LEFT JOIN
stackoverflow.com
9
Subquery inside IN clause
stackoverflow.com
9
sql - select row from group based on multiple values
stackoverflow.com
8
Cascade on Delete or use Triggers?
stackoverflow.com
8
Sql Case Statement when is not null
stackoverflow.com
8
Can I do this kind of join operation with pure SQL?
stackoverflow.com
8
Natural Join Scenario
stackoverflow.com
7
Retain original value in DataBase when NULL value is passed to Stored Procedure
stackoverflow.com
7
Why is open source software banned in some shops?
stackoverflow.com
7
Should I be using SQL transactions, while reading records?
stackoverflow.com
7
why set column to Not Null but still I can insert empty value?
stackoverflow.com
7
Optimizing a category filter
stackoverflow.com
7
SQL: How can I select table entries within the next three available dates?
stackoverflow.com
7
How to ignore trailing slash while joining two string columns in SQL
stackoverflow.com
7
Mixing Bind Variables with Literals in Oracle
stackoverflow.com
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