If I have a table
CREATE TABLE [dbo].[logg](
[Id] [bigint] IDENTITY(1,1) NOT NULL,
[Details] [varchar](MAX) NULL)
insert logg (Details) values('')
insert logg (Details) values(null)
Will both statements above access only a single page (as it fits into one page) or does the VARCHAR(MAX) always put its data on a separate page. If so, is the null insert treated differently from the '' insert?
How to implement distinct storage tiers on SQL Remote BLOB Storage (RBS)?
I want to use this SQL Feature to move files(images, videos, pdf files) from a database to a distinct database dedicated to RBS. Then I want to have several storage tiers, where objects will be saved and moved according access frequency. Old data will be arquived in cheap storage, but it must be always accessible if needed.
Description:
- 1st and main tier: new and frequently accessed objects stored in high performance storage;
- 2nd tier: automatically move older or less accessed objects to an inexpensive and different storage tier;
- in all cases, all objects must be accessible to all users, but accessing to archived objects(2nd tier) will be much slower;
I'm in the situation where we are suffering of poor performance on our SAN storage (VPlex) but it is mainly due to the quantity of data of different types which are on it (other applications, other I/O profile, bad storage usage...). As we plan to dedicate an ESX for SQL Server, we decide to have a new storage type. So we will go with NETAPP Clustered Data ONTAP on NAS technology.
Storage team want to enable only NFS protocol, so I'm wondering how SQL Server will handle that ? I read that NFS wasn't optimize for SQL Server and that block level (SAN) should be preferred.
From what I've read, if a row contains more than 8060 bytes and has varchar(MAX) columns in it, the data in those varchar(MAX) columns will be stored off-row. But what happens if you have two varchar(8000) columns instead and both contain more than 4030 bytes, is the data for both stored off-row? If so, just for that row, or for all rows in that table? And is there ever a good reason to have two varchar(8000) columns in a SQL Server 2005 table, instead of using varchar(MAX)?
View 6 Replies View RelatedI have a group of about 5 servers (which will likely grow toabout 25 in the near future) with their names listed in a table in a database on one of the servers. I want to query all servers in that table using the following query to pull the storage drive, database name, created date, age and size of the databases for each server listed in the table:
SELECT left(mf.Physical_Name,2) AS Storage_Drive,
DB_NAME(mf.database_id) AS DatabaseName,
db.create_Date,
DateDiff(day, db.create_date, getDate()) Age,
sum((mf.size*8))/1024 SizeMB
[Code] ...
How would I best accomplish this if I want to implement it using a TSQL procedure?
I am a Windows developer for the IBM Tivoli Storage Manager Server (TSMS) product.
Our product installation is built with InstallShield and uses the Windows Installer.
On a new installation of Windows 2003 x64 Storage Server R2, at a customer's site, the TSMS product fails to install.
The install of the OS has version 3.01.400.3959 of the Windows Installer and I see no newer version that installs.
Part of our product is 32 bit (console) and another part is x64 (server).
When installing I can see that the install's default is being redirected/reset to C:Program Files (x86)TivoliTSM after it is explicitly set by a custom action to ..Program Files.. . I further observe that our custom actions to write 64 bit registry entries are being refused.
REGSAM samMask = KEY_ALL_ACCESS;
if ( regIsWow64Process () ) samMask = samMask | KEY_WOW64_64KEY;
lStatus = RegCreateKeyEx( hLocalConnectKeyRoot,
szSubkey,
0L,
NULL,
REG_OPTION_NON_VOLATILE,
samMask,
NULL,
hKey,
&dw ) ;
The above fails to create the key.
We have tried four versions of our TSMS spanning many changes but the install acts the same.
This does not happen on any other Windows OS we test on but we do not test on Windows 2003 Storage Server R2 being that it is an OEM product. We did test on Windows server 2003 R2 x64 and do not see this problem.
Do you have any suggestions on how to tackle this problem?
I have full installation traces but can only see that the registry work is being refused. I can't see why.
Hi,
This question comes without the wish for any philosofical debates concerning NULL
Normally SQL Server 2005 uses 13 bytes to store a NUMERIC(22,7) value. Does it use the full 13 bytes when the column contains NULL as well? And what about DATETIME and (BIG)INT? Most of the info on storage of NULL values is about varchar/char/nvarchar/varchar...
Thnx, Jeroen.
1) it is in the same filegroup as the rest of the table?
2) it is stored in a filegroup separately from the rest of the table (I think this is allowed)?
I am new to T-SQL development and here's what I am trying to do.
declare @cmd varchar(255)
set @cmd = 'select dbid from sys.sysdatabases where dbid not in (1,2,3,4)'
while (@cmd <=13)
begin
insert into #dbcheck values (@cmd)
Set @cmd = @cmd + 1
end
but it is giving me an error
'Msg 245, Level 16, State 1, Line 3
Conversion failed when converting the varchar value 'select dbid from sys.sysdatabases where dbid not in (1,2,3,4)' to data type int.'
Note - #dbcheck has only one column id int
How do I pass a variable to an INT calculation?
CREATE PROC CLEAR_MY_TABLE
@TableStat varchar(30)
AS
If OBJECT_ID('MyDB.dbo.' + @TableStat + '') is not null
BEGIN
---PRINT 'I FOUND THE TABLE'
DECLARE @count INT = -1;
SELECT @count = (Select COUNT(*) FROM [dbo]. + @TableStat);
IF (@count > 0)
BEGIN
TRUNCATE TABLE @TABLESTAT
END
I need my code to add the varchar CPUTM field + varchar CPUZIPTIM field which both has time values to see if greater than 2 hours. How do I do this when both fields are varchar. The value in CPUTM field is 335:55:20.97 duration time. My code is below.
CPUTM = 335:55:20.97 duration time
CPUZIPTM = 0:00:01.96 duration time
select * FROM [SMF_DATA].[dbo].[System_Management_Facility]
WHERE ((convert(varchar(13), CONVERT(time, CPUTM) + CONVERT(time, CPUZIPTM))) > '02:00:00.00')
I am using a custom sql query to import data into Tableau. Problem is I need to change the varchar column data in SQL currently returning 18/01/2014 08:35:13 as a format into the date format 05/21/2014 3:55:51 PM before I can use it.
View 9 Replies View RelatedI have such Function:
IF EXISTS (SELECT * FROM sys.objects WHERE name = 'TwoDigitsNumber' AND type = 'FN')
DROP FUNCTION MinimumOFThree;
GO
CREATE FUNCTION TwoDigitsNumber(@a int)
RETURNS nvarchar(20)
[Code] ....
The only first letter 'f', 's', 'e' is inserted in value instead 'first', 'second', 'equal'.
Why ? How can i insert whole string
I have column moddat which is of varchar(10,null)
Here is my data:
20020415
20020508
19991104
19990701
20040514
20021112
20020124
19990628
20020514
20010822
I want those data in this format YYYY-MM-DD
How to convert varchar to datetime?
Within in Visual Studio 2012 solution, I have several projects, one of which is a Database project. I am defining several tables. The one in question is:
CREATE TABLE [dbo].[tblKppHierarchyPcl]
(
[ID] NUMERIC(18,0) NOT NULL,
[Name] VARCHAR(500),
[PartStructureKey] NUMERIC(18,0) NOT NULL,
[PartNumber] VARCHAR(500) NOT NULL,
[ParentPartNumber] VARCHAR(500) NULL,
[code]...
Error SQL72014: .Net SqlClient Data Provider: Msg 245, Level 16, State 1, Line 76 Conversion.failed when converting the varchar value 'Coolant Quick Disconnect' to data type int.So it has a problem with inserting 'Coolant Quick Disconnect' into the Name column. The Name column is CLEARLY a varchar column but somehow it thinks it's an int column.
i have a situation where is need to get email address from a varchar column. Here is some sample data for five records; The format can be change.
dummy text;
Tel: +44 (0)1234 566788;
Email: bbc@co.uk
Admissions dummy text;
T: +44 (0)1234 4444;
E: xyz@co.uk;
dummy text;
dummy text;
Tel: +123 32323 33;
Email: test@yahoo.com;
dummy text;
t: +88 (0) 115 333 5553;
f: +99 (0) 115 222 8888
e: dummy@gmail.com;
dummy text;
t: +11 (0) 222 222 2222;
e: myemail@test.com;
w:http://www.yahoo.com/faqs;
I have following XQuery:
declare @xmldoc as xml
select @xmldoc = '<Text>This is firstline<Break />This is second line<Break />This is third line</Text>'
select @xmldoc.value('(/Text)[1]','varchar(max)')Result is: "This is firstlineThis is second lineThis is third line"
My problem is, that the <Break /> tags within the text are removed in the conversion to varchar. How to preserve the such tags in the varchar output? Or to get the <Break /> tags "translated" to e.g. CHAR(10)?
I have a table with Month , Year as varchar. I realized it was a big mistake. Since its getting too complicated to query this way.
Year Month Productname
2013 11 ACB
2013 11 CDE
I would now like to add another column called date and store these Year Month as a date to my existing table
Year Month ProductName Date
2013 11 ACB 2013-11-01
2013 11 CDE 2013-11-01
Is there a way I can do it for all the columns of the existing table ??
I know that if I have an nvarchar column I can use an equality like = N'supersqlstring' so it doesn't implicit cast as a varchar, like if I were to do ='supersqlstring'. And then I'll be a big SQL hero and all my stored procedures will run before a millisecond can whisper.
But if I'm comparing an nvarchar column to a varchar column, is it better to cast the varchar 'up' to an nvarchar or cast the nvarchar 'down' to a varchar?
For instance:
cast(a.varchar as nvarchar(100)) = an.nvarchar
or
cast(an.nvarchar as varchar(100)) = a.varchar
Leaving aside non-matching, like (at least I don't think) that SQL considers the varchar n to be equal to the nvarchar ń, what's the best way to handle this?
Pretend for a moment that each column contains a mixed letter and number ID with no accented or wiggly-squiggly Unicode characters; it's just designs clashing.
Is there a performance hitch doing it one way or another? Should I use COLLATE? Should one of the columns be altered?
I have the following code in a SP. The 2 if statements for the @@ Error I added only for testing as I suddenly started get the following error at the 1st @@Error statement
Msg 232, Level 16, State 2, Line
Arithmetic overflow error for type varchar, value = 10000.00000.
I cannot have this SP running minutes it must be done in seconds.
I have tried the folloiwng changes but then it takes to long.
-- set @new = 'x' + right('0000' + convert(varchar(5), round(rand() * 10000, 0)), 4)
-- set @new = 'x' + right('0000' + convert(varchar(4), right(round(rand() * 10000, 0),4)), 4)
declare @newvarchar(5),
@xstsint,
@new_retvarchar(5)
,@Cnt as int /* just for my testing */
set @cnt = 0 /* just for my testing */
[Code] ......
I keep getting requests to increase the width of a varchar colum every now and then.
I want to ask if its perfectly ok when you have active users connecting to the application to do this?
I have a table with column "Data" as VARCHAR, with entries like below.
1
11
2
A1
A10
A11
246
AB1
AB10
100
256
B1
B2
124
20
B21
B31
32
68
I want to select the data by converting varchar to int for numeric values and for alphanumeric it should display as it is.
SELECT CAST(dataAS INT) FROM record_tab
getting below error
Conversion failed when converting the varchar value 'A1'
any tricks to separate this column from:
"testlname,testfname comment section > comment section testlname,testfname 6/30/2015 9:05:58 AM > testlname,testfname 6/30/2015 9:06:18 AM > comment section testlname,testfname 6/30/2015 9:10:05 AM > comment section"
to:
col1 Col2 col3
testlname,testfname 6/30/2015 9:05:58 AM comment section
testlname,testfname 6/30/2015 9:06:18 AM comment section
testlname,testfname 6/30/2015 9:10:05 AM comment section
I am doing a Case statement to create a unified field for account type and vendor, in the code below I am receiving the error in the subject, because the account numbers have alpha characters in the string, I need to make them as OTHER if the first 2 left chars are Alpha, I thought how I have ISNUMERIC would do that but I am still getting the error.
I am also including example of how the account_numbers are formatted.
R222209
R222220
R222222
R222212
R221123
F707768
[Code] .....
I'm trying to convert the query immediately below into a function with the conditional logic to return a VARCHAR value with the gender: male, female or unknown.
SELECT empid, firstname, lastname, titleofcourtesy,
CASE
WHEN titleofcourtesy IN('Ms.', 'Mrs.') THEN 'Female'
WHEN titleofcourtesy = 'Mr.' THEN 'Male'
ELSE 'Unknown'
END AS gender
FROM HR.Employees;
GO
Below is the conditional logic function I'm trying to create to replicate the logic above.
CREATE FUNCTION dbo.Gender
(
@male AS VARCHAR(10),
@female AS VARCHAR(10),
@unknown AS VARCHAR(10)
)
RETURNS VARCHAR(10)
[Code] .....
Am converting varchar field to float and summing using group by and next inserting to varchar field(table).
while inserting float value it is converting to exponential ex:1.04177e+006 but if i execute only select statment actual float value will get display ex:1041765.726
My question is why it is converting while inserting ? and how to avoid it.
select query : SUM(CONVERT(float,(rtrim(REPLACE(REPLACE( column1, CHAR(13), ' '), CHAR(10), ' '))))) as AggregateValue
how SQL 2012 would treat a literal string for a comparison similar to below. I want to ensure that the server isn't implicitly converting the value as it runs the SQL, so I'd rather change the data type in one of my tables, as unicode isn't required.
Declare @T Table (S varchar(2))
Declare @S nvarchar(255)
Insert into @T
Values ('AR'), ('AT'), ('AW')
Set @S = 'Auto Repairs'
Select *
from @T T
where case @S when 'Auto Repairs' then 'AR'
when 'Auto Target' then 'AT'
when 'Auto Wash' then 'AW' end = T.STo summarise
in the above would AR, AT and AW in the case statement be treated as a nvarchar, as that's the field the case is wrapped around, or would it be treated as a varchar, as that's what I'm comparing it to.
I'm trying to find a specific string (a name) and replace it with another inside of a VARCHAR(7000) field. Unfortunately, there are names like Ted and Ken that I'm trying to replace. I would like to leave words like Broken, admitted, etc... intact.
UPDATEtbl
SETBody = LEFT(REPLACE(tbl.Body, pm.OldFirstName, p.FirstName), 7000)
FROM Table tbl
JOIN Person p ON p.PersonID = tbl.PersonID
JOIN PersonMap pm ON pm.PersonID = p.PersonID AND LEN(pm.OldFirstName) > 2
WHEREtbl.Body LIKE '%[^a-z]'+pm.OldFirstName+'[., ]%
'The problem I'm running into is that the '[, ]%' in the LIKE excludes any record that ends with the FirstName because it is requiring either a space, comma or period after the name. Is there some way to add an empty string to the list of acceptable characters as that would cover any scenario in the data? I would prefer not to add all characters except space, comma and period, but I guess I could do that.
I have three variables
DECLARE @QuantityID uniqueidentifier,
@LengthID uniqueidentifier,
@CostID uniqueidentifier
They are sent to the sproc as null. Since they could be null I need to exclude them from posting to a temp table
Example
DECLARE @QuantityID uniqueidentifier,
@LengthID uniqueidentifier,
@CostID uniqueidentifier
SET @CostID = NEWID()
SELECT @QuantityID as ID UNION ALL
SELECT @LengthID UNION ALL
SELECT @CostID
Two values are null. I want those excluded from this table
Here is the example of what I am trying to do:
DECLARE @QuantityID uniqueidentifier,
@LengthID uniqueidentifier,
@CostID uniqueidentifier
DECLARE @Temp as Table (id uniqueidentifier NOT NULL Primary key)
SET @CostID = NEWID()
INSERT INTO @Temp
SELECT @QuantityID as ID UNION ALL
SELECT @LengthID UNION ALL
SELECT @CostID
How do I insert into @Temp only non null values?
OK, so I have this query where I'm trying to subtract values like this, when I do this I am getting (Arithmetic overflow error converting varchar to data type numeric.) I have tried many different things, and now of these work, it'll either return 0 because it loses the .XXXXX.
Convert(DECIMAL(10,7),CAST([TIME_OF_COMPLETION] as DECIMAL(10,7)) - Convert(DECIMAL(10,7),CAST([OPR_DELIVERED_TIME] as DECIMAL(10,7)) round(cast(cast(hist.[TIME_OF_COMPLETION] AS float) as DECIMAL(15, 5)) - CAST(hist.[OPR_DELIVERED_TIME] AS FLOAT),1 SELECT convert(FLOAT,CAST('735509.00053' AS DECIMAL(10,5))) - convert(FLOAT,CAST('735509.00047' AS DECIMAL(10,5)))
I have two tables, a dates table and a values table. They are joined on the date column.The date table has a range, say from today as far as 20 days from now, incrementing by 1 day each row.The values table may have a row for a day, and may not. If the day has a value I want to display that value.If the day does not have a value in the values table I want to display the last known value.
I think this can be done with windowing functions in a set based manner but have not been able to work it out. I have done it procedurally but im not happy with that at all, and really want to see if this is possible in a set based manner.Below is some simplified code to allow testing with sample data.
create table DimDate
(
DateCol date
)
create table TotalsData
(
DateCol date
[code]....
The following t-sql 2012 works fine in sql management studio. However when I place it in a .net 2010 web form application, I am told the sql does not work when the parameter values are null. Thus can you tell me what I can change in the sql below that will accept null as 3 possible input values?
SELECT i.[lastName]
,i.[firstName]
,i.[middleName]
,i.[suffix]
,a.[userid]
[code]...
CREATE TABLE A (ID INT IDENTITY (1,1))
CREATE TABLE B (ID INT, EMPID VARCHAR(10))
INSERT INTO A DEFAULT VALUES
GO 5
INSERT INTO B VALUES (1,'E23')
INSERT INTO B VALUES (1,'E24')
INSERT INTO B VALUES (2,'E23')
from the above code i would like to get output like
ID EMPID
1 23
2 23
3 null
4 null
5 null
1 24
2 null
3 null
4 null
5 null
I'm trying like
select a.id, b.empid from (
select * from a cross join (
select distinct empid from b) b
) a
left outer join b on a.id = b.id but i get repetitive rows.