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Im using Microsoft SQL Server 2008 and i wanted to dump something from the database.
Its holding over 585k users.
I wanted to ask how i can select a specific row in a column
Like the column is named "User_ResetKey" in the database US_HBS_MEMBERS the table would be US_UserInfo, im really a noob in that maybe someone can help me the row number would be 123921
I mean how i can fetch data what is in the row number 123921?
regards,
jamsb
via using
Row_number()
here you are ,
SELECT * FROM (
SELECT
ROW_NUMBER() OVER (ORDER BY [User_ResetKey] ) AS rownumber,
*
FROM [US_HBS_MEMBERS].[dbo].[US_UserInfo]
) AS myTable
WHERE rownumber = 123921
supposed your schema is 'dbo'.
Related
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I have a table whose Date column needs pushing ahead by 1 day.
My update query is:
UPDATE TABLENAME
SET DATECOL=DATECOL+1
Is this correct approach? Or do I need to use CTE, for example:
;WITH CTE AS (
SELECT ID, DATECOL
FROM TABLENAME)
UPDATE T
SET T.DATECOL=CTE.DATECOL+1
FROM TABLENAME T
JOIN CTE ON T.ID=CTE.ID
To add a value to any part of date you can use DATEADD function. In your case the part time is DAY.
UPDATE TABLENAME
SET DATECOL=DATEADD(DAY, 1, DATECOL)
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I have made fault history log into HMI through SQL database,
I am deleting top row by PLC TAG by using following code
DELETE TOP (10) PERCENT FROM [dbo].[ABC]
I want to delete first row while my row-count reached to 10000
in other way to say that ....
a new fault record add in log and first old record should delete and so on...
If I understansd you correctly, you need to number the rows using ROW_NUMBER() and then execute appropriate DELETE and INSERT statements:
DELETE t
FROM (
SELECT *, ROW_NUMBER() OVER (ORDER BY PLC DESC) RN
FROM [dbo].[ABC]
) t
WHERE RN >= 10000
INSERT [dbo].[ABC] (PLC) VALUES (...)
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SQL Server creating table error.
How to give system date, system date + 2 days while creating a table?
Is the system date the same as the current date?
You can try the SQL DEFAULT Constraint as shown below if I understood your question properly:
Create table Test(id int
, name varchar(20)
, dtDate datetime default DateAdd(dd, 2, getdate()))
insert into Test (id, name) values
(1, 'A')
select * from Test
Live db<>fiddle demo.
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I have a column-based table like this:
And I need to convert it to a row-based table like this:
Any help would be appreciated.
I think you need an UNPIVOT -
SELECT OrgID, Property, DataValue
FROM (SELECT OrgID, Property, DataValue
FROM YOUR_TABLE
UNPIVOT
(
DataValue FOR Property IN (ExtensionDigits
,StartExtension
,LastUsedExtension
,Server1IP
,Server2IP
,ServerPort
,IsFunctionOn
,VolumeDecibel)
) unpvt) temp
WHERE DataValue IS NOT NULL;
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I would like ask if this is possible in any database. Lets say there's one column on my database that has a content like this:
-----------------
|columname |
-----------------
| roan,joan,keith|
------------------
If I do a select query, can I just display roan from that field?
Thanks,
MSSQL version of Mark answer:
SELECT SUBSTRING(columnname, 1, CHARINDEX(',', columnname, 1) - 1) FROM testtable;
Oracle solution:
select substr(columnname,1,instr(columnname,',')-1) from testtable;