How Do I Covert Varchar To Datetime Of A Table .

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How to convert varchar to datetime..

i have uploaded few records into a table where date is varchar

and i need to update to my main database but as both the table is having different datatypes
query is not updating..

kindly help me to convert varchar into datetime ..

i am using ASP.net code
backend- SQL

Posted 4-Aug-14 0:09am

10923679

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BulletVictim 4-Aug-14 6:11am

http://stackoverflow.com/questions/10247050/sql-server-convert-varchar-to-datetime

Prasad Avunoori 4-Aug-14 6:11am

Do you want to update the sql tables datatype?
Please two different records from database with varchar and datetime each.

10923679 4-Aug-14 6:15am

NO i need to update the time from one table to another
but becos both table is having different datatype(varchar and another is datetime)
so update is not working in asp.net

Prasad Avunoori 4-Aug-14 6:20am

I am asking you to share/post two records from each table. In which table you want update?

10923679 4-Aug-14 6:22am

i want to update into main table where datatype is datetime..
from table1 table 2
date(varchar) to date(datetime)

10923679 4-Aug-14 6:19am

select UserNo,User_Date,AdviceDate
CONVERT (datetime,UserDate,103) as User_Sanction_Date1,
CONVERT (datetime,AdviceDate,103) as AdviceDate1
from table_temp

this is working but how to save this in a table
after saving this into a table only i can update with my main table

Prasad Avunoori 4-Aug-14 6:25am

select UserNo,User_Date,AdviceDate
CONVERT (datetime,UserDate,103) as User_Sanction_Date1,
CONVERT (datetime,AdviceDate,103) as AdviceDate1
INTO #table_temp1
from table_temp

10923679 4-Aug-14 6:28am

SO can i use this table #table_temp1 to update with my main table ??

Prasad Avunoori 4-Aug-14 6:29am

Yes, you can. Without it also you may update using join.

10923679 4-Aug-14 6:31am

oh thanks you so much..

10923679 4-Aug-14 6:36am

okay can u tell me abt one more thing..

temp_table1= 127 rows

temp_table2=506 rows
i will to get all the data
and one column name is Ticketno

show all where ticket number is present

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Prasad Avunoori · Answer 1 · 2014-08-04T00:32:00

Solution 1

SQL

UPDATE M
SET M.UserDate = CONVERT (datetime,T.UserDate,103)
, M.AdviceDate = CONVERT (datetime,T.AdviceDate,103)
FROM Main_Tabl M
INNER JOIN table_temp T ON M.UserNo= T.UserNo

Posted 4-Aug-14 0:32am

Prasad Avunoori

Comments

10923679 4-Aug-14 6:50am

thanks