Measure the time it takes to execute a t-sql query
One simplistic approach to measuring the "elapsed time" between events is to just grab the current date and time.
In SQL Server Management Studio
SELECT GETDATE();
SELECT /* query one */ 1 ;
SELECT GETDATE();
SELECT /* query two */ 2 ;
SELECT GETDATE();
To calculate elapsed times, you could grab those date values into variables, and use the DATEDIFF function:
DECLARE @t1 DATETIME;
DECLARE @t2 DATETIME;
SET @t1 = GETDATE();
SELECT /* query one */ 1 ;
SET @t2 = GETDATE();
SELECT DATEDIFF(millisecond,@t1,@t2) AS elapsed_ms;
SET @t1 = GETDATE();
SELECT /* query two */ 2 ;
SET @t2 = GETDATE();
SELECT DATEDIFF(millisecond,@t1,@t2) AS elapsed_ms;
That's just one approach. You can also get elapsed times for queries using SQL Profiler.
Calculate execution time of a SQL query?
We monitor this from the application code, just to include the time required to establish/close the connection and transmit data across the network. It's pretty straight-forward...
Dim Duration as TimeSpan
Dim StartTime as DateTime = DateTime.Now
'Call the database here and execute your SQL statement
Duration = DateTime.Now.Subtract(StartTime)
Console.WriteLine(String.Format("Query took {0} seconds", Duration.TotalSeconds.ToString()))
Console.ReadLine()
How to calculate a MSSQL query execution time using python
from time import time
# your code here
tic = time()
cursor.execute("select * from db.customer")
toc = time()
print toc - tic
SQL Server Management Studio, how to get execution time down to milliseconds
I was struggling with that until i found this...
http://blog.sqlauthority.com/2009/10/01/sql-server-sql-server-management-studio-and-client-statistics/
Also, if you open the Properties window you may find some magical "Connection elapsed time" that may give you some execution time...
Hope it helps...
How can I get the execution time of an SQL query using MySQL Connector in Python?
Just calculate the time it takes to complete the query.
from time import time
# your code here
tic = time()
cursor.execute("select * from db.clients")
toc = time()
print toc - tic
Calculate Teradata Query Execution Time
Years ago the datataype for the timestamps in DBQL changed from TIMESTAMP(2)
to TIMESTAMP(6)
, now when you try to get SECOND(2)
in your result it overflows. To fix this either use SECOND(6)
or ``SECOND`.
Btw, depending on your release, you'll find ElapsedTime
& DelayTime
pre-calculated in dbc.QryLogV.
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