Table Size And Computed Columns
Jul 23, 2005In SQL Sever, do the size of computed columns gets added to the total
size of the tables? Does SQL server stores the actual values in
computed columns?
Thanks
_GJK
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Bulk Inserting Into Table With Computed Columns
Jul 20, 2005Using SS2K, I'm getting the following error while bulk inserting:Column 'warranty_expiration_date' cannot be modified because it is acomputed column.Here is my bulk insert statement:BULK INSERT dbo.TestDataFROM 'TestData.dat'WITH (CHECK_CONSTRAINTS,FIELDTERMINATOR='|',MAXERRORS = 1,FORMATFILE='TestData.fmt')The computed column is not referenced in the format file and the data filedoes not contain the computed data.Thanks
View 2 Replies View RelatedComputed Columns
Jul 4, 2007Is it possible to get a Computed column in one table to carry out a SELECT & SUM from a column in another table? I have tried a SELECT / FROM / WHERE construct but SQL complains about that.
Regards
Clive
Computed Columns...
May 20, 2008I am working with data that has a lot of records that get updated and inserted frequently, and to avoid having to create formulas through code all over the place, I am experimenting with computed column formulas. I have a question though.. It works well for any addition or subtraction (columnA+columnB), however, when I try to use division (columnA/columnB), it only returns integers, no decimals. I would like to have decimals, particularly with a specific scale and precision and I would really like to attempt this without any coding. Any suggestions?
View 3 Replies View RelatedComputed Columns
Oct 31, 2003I have a table with fields called fname (First Name) and lname (Last Name). I need the user´s email thai is compose from lname and fname:
LOWER(LEFT (fname,1) + lname)
Is there any difference between creatig this computed column ia a table or in a view in SQL Server 2000?
I can do:
1. CREATE TABLE Users(
fname varchar(20),
lname varchar(20),
email as LOWER(LEFT (fname,1) + lname) )
Or
2. CREATE TABLE Users (
fname varchar(20),
lname varchar(20))
CREATE VIEW Vw_users (fname, Lname ,
email)
AS
SELECT fname, Lname ,
LOWER(LEFT (fname,1) + lname) )
Is one of them is better?
Paulo
Computed Columns
Nov 6, 2006Dear all,
Pls help me with this
I have 2 tables
Trip (TripID, Duration)
Reserve(ReserveID, TripID, StartDay, EndDate)
in which EndDate = StartDay + Trip.Duration
How can I do this?
Computed Columns
Jul 20, 2005I have a table with fields called fname (First Name) and lname (LastName). I need the user´s email thai is compose from lname and fname:LOWER(LEFT (fname,1) + lname)Is there any difference between creatig this computed column ia a tableor in a view in SQL Server 2000?I can do:1. CREATE TABLE Users(fname varchar(20),lname varchar(20),email as LOWER(LEFT (fname,1) + lname) )Or2. CREATE TABLE Users (fname varchar(20),lname varchar(20))CREATE VIEW Vw_users (fname, Lname ,email)ASSELECT fname, Lname ,LOWER(LEFT (fname,1) + lname) )Is one of them is better?Paulo*** Sent via Developersdex http://www.developersdex.com ***Don't just participate in USENET...get rewarded for it!
View 1 Replies View RelatedComputed Columns
Sep 25, 2006Hi,
Consider the following example
create table sample
(col1 int,
col2 int ,
col3 AS col1 + col2) PERSISTED NOT NULL)
basically col3 is a computed column. Now when ever a row in col1 or col2 is updated the computed column will reflect the new value. how does this happen in the background. does this use row level triggers or what other mechanism is used to maintain col3 - computed column
Computed Columns Or UDFs
Jul 8, 2004Hi,
What is the difference between a computed column and a UDF?
Is a computed column the same as the "Formula" field under Design Table in Enterprise Manager?
Also, what is the proper syntax for the Formula field? Can I use regular SQL on it or is there more to it?
thanks,
Frank
Computed Columns And Constant
Aug 22, 2006Hi, I have a small problem with my database. I've got following situation: I have a computed column, which value is base on currency rate: rent * rate. Users have to have possibility to change currency rate easily (maybe another table or constant). Is there any way to create formula, which would compute value properly, via constant or something like this? Or the easiest workaround would be load data into dataset (I'm building asp.net application - database will be very small - couple of hundreds of records) and make calculations programmatically?
Przemek
Modify Computed Columns Using T-SQL
Oct 8, 2007Hi,
I have a table with 4 columns let us say A,B,C,D.
column D is computed column with formula A + '-' + B
Now, i want to add one more condition to the formula which looks like "A + '-' + B + '-' + C".
Please let me know how to do this using T-SQL as i cannot open the table in design mode in production server.
Thanks in Advance!!
Smalldatetime In Indexed Computed Columns
Nov 13, 2001i have a table containing the column "current month" and "current day" as smallint which contains the number of months since 1900-01-01 and the day of this month. now i want to trnslate this column in a smalldatetime ( not datetime !) value using a computed column and then create an index on that column.
the formula should be:
dateadd(d,[current day]-1,
dateadd(m,[current month],convert(smalldatetime,'1900-01-01'))
)
trying to create an index on this column results in an error message saying
that the formula is nondeterministic or imprecise
removing the convert statement leaving only the date results in a column of type datetime and creating the index works fine
replacing convert(smalldatetime,'1900-01-01') with a column name which has the type smalldatetime also allows to create an index but thats not what i want to do.
it seems that sql2000 thinks a convert from a string to a date is nondeterministic. Is there any possibility to create a const of type smalldatetime without using convert?
Any idea?
(besides this, datediff(d,'yyyy-mm-dd',anydate) is nondeterministic but datediff(d,dateadd(d,0,'yyyy-mm-dd'),anydate) is deterministic. strange...)
and
Computed Columns In Temp Tables
Jun 25, 2004I am having a problem with using UDF as part of a temp table computed column. Here's the sample code:
IF EXISTS( SELECT 1 FROM information_schema.routines WHERE routine_name = 'fn_test')
DROP FUNCTION dbo.fn_testGO
CREATE FUNCTION dbo.fn_test( @x int, @y int)
RETURNS INT AS
BEGIN
DECLARE @z INT
SET @z = @x + @y
RETURN @z
END
GO
CREATE TABLE #X
(
x INT,
y INT,
z AS (dbo.fn_test(x,y))
)
I receive the following error:
Server: Msg 208, Level 16, State 1, Line 2
Invalid object name 'dbo.fn_test'.
I do not get this error if I use a regular table.
HELP!
T-SQL (SS2K8) :: Computed Columns - Max From Other Column For The Same ID?
Jul 25, 2012Suppose a table being
Create table myTable (ID int, col1 int, col2 int)
I know how to make a computed column being the sum of other column for the same ID e.g. "computed_column = col1 + col2".
Getting the average would be "computed_column = (col1 + col2)/2" But how to get the Max, Min?
Even "Sum(col1,col2)" or AVG(col1, col2) does not work as the formula for a computed column...
Create View With Computed Columns?
Apr 1, 2015I have a table that I cannot allow a computed field to exist on (due to a 3rd party software), so I am thinking I could create a view with a computed field that is persistent, is that possible?
the syntax below will not work, I am not even sure if this is possible, but if it can work, that would be great.
I am wanting to get the sum of jetfoot1, 2 & 3 and have the total added up as "total"
create view ViewSumReport as
select JETFOOT1,JETFOOT2,JETFOOT3,(JETFOOT1+JETFOOT2+JETFOOT3)as [total] persisted
from dbo.fielddata
GO
Computed Columns Asynchronously Updating?
Mar 19, 2008I have a checksum calculation as a persisted, indexed computed column on a temporary table that I used to compare against original records to detect changes.
It seems that the update/ insert statements in my procs get out of sync on larger tables (500,000 rows +) with the checksum calculations. The only thing I can think of is that the column calculations are performed asynchronously in relation to the updates/ inserts. This is a problem for me.
Is my assumption correct? If it is, how can I adjust for this, i.e., force the computations to be performed synchronously or wait for the computations to complete before running comparisons?
-Jeremy
___________________________
Geek At Large
Trying To Find A Match In Computed Columns
May 26, 2006I need to create an function similar to the "MATCH" function in Excelthat evaluates a number within a set of numbers and returns whetherthere is a match. I have put the example of what I see in excel in thecheck column. The "0" answer in the result column is in the fourthaccount in the list. Somehow I need to loop through the accountscomparing the result to the total and indicate a match in the checkcolumn. It wouldn't even need to tell me the row number; it could be a0 or 1.account total result check123770266.84124.2112377026131.050 412377026164.38-33.33123770260131.051237702678.7152.3412377167-31.34221.891237716731.34159.211237716738.55152 51237716731.34159.211237716715238.5512377167490.91-300.36123771670190.55123771670190.5512377167-31.3443.341237716731.34-19.341237716738.55-26.551237716731.34-19.3412377167152-14012377167490.91-478.9112377167012123771670121237736347.058412377363131.05012377363-45.38176.4312377363-47.05178.11237736347.0484.0112377363-47.04178.091237736347.058412377363541.11-410.06123773630131.0512377363672.15-541.11237750737.64152.91
View 3 Replies View RelatedComputed Columns Asynchronously Updating?
Mar 19, 2008I have a checksum calculation as a persisted, indexed computed column on a temporary table that I used to compare against original records to detect changes.
It seems that the update/ insert statements in my procs get out of sync on larger tables (500,000 rows +) with the checksum calculations. The only thing I can think of is that the column calculations are performed asynchronously in relation to the updates/ inserts. This is a problem for me.
Is my assumption correct? If it is, how can I adjust for this, i.e., force the computations to be performed synchronously or wait for the computations to complete before running comparisons?
Computed Columns Used In Select Statement
Nov 12, 2007Does tsql allow sth like
Select col1*col2 as ComputedColumn, ComputedColumn + 2 as NewColumn
From T_Table
THis is possible in Access.
Simple Question About Computed Columns
Aug 30, 2007
Hello,
does anyone know a website, where I can read something about the syntax of Computed Columns?
I don't know how to enter the following expression in the computed columns field of MS SQL Server:
When x-y < 0 Then 0 else x-y
Thank you
M-l-G
OLE DB ARITHABORT Error With Indexed Computed Columns
Oct 31, 2002Instead of using Full-Text indices, which I don't like to manage, we've tried to use seperate tables that contain recordID, the word, a count of the word in the parent field and computed column which is the CHECKSUM() of the word column. I indexed the checksum column with a clustered index.
Works great in Query Analyser. But when the ASP page calls it, I get this message:
Microsoft OLE DB Provider for SQL Server (0x80040E14)
INSERT failed because the following SET options have incorrect settings: 'ARITHABORT'.
Same for updates and deletes. The question is how should these SET settings be done? Any ideas would be greatly welcomed.
Thanks
Jason
SQL Server Admin 2014 :: Possible To Find Table Size And In That Table Each Row Size
Jun 10, 2014It is possible to find table size and in that table each row size.
View 4 Replies View RelatedComputed Column In A Replicated Table
Apr 10, 2015I have a strange problem. I have a computed column in a replicated table, the Formula is as follows:
(isnull(hashbytes('SHA2_256',CONVERT([varchar](256),[AccrualReference],(0))),(0))) the column is also Persisted.
This gets around a case sensitivity issue and is used as the Primary Key column, which works well.The problem is that this table is then replicated to another server. On the subscriber the value of this computed field is being returned as 0x00000000 for every row, so this must be the ISNULL function doing its job. But why? The AccrualReference is the true PrimaryKey and is never NULL.
If I remove the computed specification and set the field up as varbinary(64) the value then gets replicated. This then means maintaining a different table schema for in excess of 500 tables.
Table Partioning With Computed Column
Oct 25, 2006This full version of this reporting table will have about 12 million row for each of three years. Prior years will be in separate partitions and frozen but the current year will be reloaded each night by source_key, probably in parallel.
I am trying to do this with a computed column but I can't slide the partition back into the main table due to an apparent problem with the Check constraint. I have tried everything I can think of and still can't get it to work.
I hope I am missing something simple. Anyone know why this does not work or how to fix it?
ALTER TABLE SWITCH statement failed. Check constraints or partition function of source table 'db_template.dbo.foo_year_source_partition_test_stage' allows values that are not allowed by check constraints or partition function on target table 'db_template.dbo.foo_year_source_partition_test'.
------------------------------------------------------------
CREATE PARTITION SCHEME zzYearSourcePScheme
AS
PARTITION zzYearSourceRangePFN
TO
(
[fg_template_0],
[fg_template_0],
[fg_template_0],
[fg_template_0],
[fg_template_0]
)
go
CREATE TABLE [dbo].[foo_year_source_partition_test](
[detail_date] [datetime] NULL,
[source_key] [int] NULL,
[year_source] AS ((CONVERT([char](2),right(datepart(year,[detail_date]),2),0)+'-')
+right('0000'+CONVERT([varchar](3),[source_key],0),(3))) PERSISTED,
[ys_id] int identity (1,1)
) ON zzYearSourcePScheme(year_source)
go
create unique clustered index ix_year_source_ys_id on [foo_year_source_partition_test] ([year_source], [ys_id]) ON zzYearSourcePScheme(year_source)
go
insert into [foo_year_source_partition_test] values('20060131',2)
insert into [foo_year_source_partition_test] values('20060131',3)
insert into [foo_year_source_partition_test] values('20060131',4)
SELECT *, $PARTITION.zzYearSourceRangePFN(year_source) AS Partition from [foo_year_source_partition_test] order by detail_date
go
CREATE TABLE [dbo].[foo_year_source_partition_test_stage](
[detail_date] [datetime] NULL,
[source_key] [int] NULL,
[year_source] AS ((CONVERT([char](2),right(datepart(year,[detail_date]),2),0)+'-')
+right('0000'+CONVERT([varchar](3),[source_key],0),(3))) PERSISTED,
[ys_id] int identity (1,1)
) --on same one ON YearSourcePScheme(year_source)
create unique clustered index ix_year_source_ys_id
on [foo_year_source_partition_test_stage] ([year_source], [ys_id]) --ON YearSourcePScheme(year_source)
ALTER TABLE db_template.dbo.foo_year_source_partition_test
SWITCH PARTITION 3 to db_template.dbo.[foo_year_source_partition_test_stage]
TRUNCATE TABLE db_template.dbo.[foo_year_source_partition_test_stage]
ALTER TABLE db_template.dbo.foo_year_source_partition_test_stage
WITH CHECK
ADD CONSTRAINT CK_foo_year_source_partition_test_stage_YearSource
CHECK
(
[year_source] = '06-003'
)
insert into foo_year_source_partition_test_stage values('20060202',3)
insert into foo_year_source_partition_test_stage values('20060303',3)
insert into foo_year_source_partition_test_stage values('20060404',3)
insert into foo_year_source_partition_test_stage values('20060505',3)
ALTER TABLE db_template.dbo.foo_year_source_partition_test_stage
SWITCH TO db_template.dbo.foo_year_source_partition_test PARTITION 3
UDF As Computed Column In Temporary Table In Proc
Jun 16, 2008I've created a stored procedure that creates and uses a temporary table with a computed column. I want the computed column to call a user-defined function(UDF) that I've created. Here's an example:
CREATE PROCEDURE [dbo].[usp_Proc]
(
@Date datetime
)
AS
BEGIN
--Drop the temp table if it still exists so reports come out accurate
IF EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[#temp]') AND type in (N'U'))
DROP TABLE #temp;
--Create the temp table for use in this stored procedure
IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[#temp]') AND type in (N'U'))
CREATE TABLE #temp (
[ID] INT PRIMARY KEY IDENTITY(1,1),
[Column1] NVARCHAR (30) DEFAULT ('XXXX-XXXXX'),
[Column2] INT DEFAULT (0),
[Column3] INT DEFAULT (0),
[Column4] INT DEFAULT (0),
[Column5] as ([Column2] + [Column3] + [Column4]),
[Column6] as (dbo.FunctionName('5381', [Column1]))
)
--Insert data
INSERT INTO #temp([Column1], [Column2], [Column3], [Column4])
SELECT 'String', 1, 2, 3
--Perform more calculations
<snipped...>
SELECT * FROM #temp
DROP TABLE #temp
END
This is an example of the function:
CREATE FUNCTION [dbo].[FunctionName]
(
-- Add the parameters for the function here
@Type nvarchar(4),
@Quantity int
)
RETURNS Money
AS
BEGIN
RETURN (cast((SELECT ([Value] * cast(@Quantity as int)) FROM tblTable WHERE [ID] = @Type) as Money))
END
The error message I'm getting after I've created both the stored procedure and the UDF is when calling the stored procedure. Here it is:
Msg 4121, Level 16, State 1, Procedure usp_Proc, Line 13
Cannot find either column "dbo" or the user-defined function or aggregate "dbo.FunctionName", or the name is ambiguous.
There's no way the function name is ambiguous. Is it even possible to do what I'm trying to do or am I just calling it the wrong way?
Hosmerica
Replication Invalid Syntax Error: Table Has Computed Primary Key
Sep 13, 2006Hi,
I have set up a publisher using transactional replication. ( all seems ok). The initial snapshot has been generated.
The replication share on the distributor has all the generated DDL in it.
I add a subscriber. The tables are generated up to tblCountry then I get an incorrect syntax near ')' error
The Replication Monitor shows the following code as the cause. ( bold indicates incorrect sql)
Is this a bug in Replication (as this is an autogenerated sp)or have I configured something incorrectly?
The ddl for the table index is as follows ( from the replication folder)
/----
CREATE TABLE [APP].[tblCountry](
[CountryId] AS ([ISO 3166-1 NUMERIC-3]) PERSISTED NOT NULL,
[CountryCode] AS ([ISO 3166-1 ALPHA-2]) PERSISTED NOT NULL,
[CountryName] [varchar](80) COLLATE Latin1_General_CI_AS NOT NULL,
[ISO 3166-1 ALPHA-2] [char](2) COLLATE Latin1_General_CI_AS NOT NULL,
[ISO 3166-1 ALPHA-3] [char](3) COLLATE Latin1_General_CI_AS NOT NULL,
[ISO 3166-1 NUMERIC-3] [int] NOT NULL
)
GO
---/
/------ Keys ddl (.dx)
ALTER TABLE [APP].[tblCountry] ADD CONSTRAINT [PK_TBLCOUNTRY] PRIMARY KEY CLUSTERED ([CountryId])
go
ALTER TABLE [APP].[tblCountry] ADD CONSTRAINT [UQ_TBLCOUNTRY_ALPHA2] UNIQUE NONCLUSTERED ([ISO 3166-1 ALPHA-2])
go
ALTER TABLE [APP].[tblCountry] ADD CONSTRAINT [UQ_TBLCOUNTRY_ALPHA3] UNIQUE NONCLUSTERED ([ISO 3166-1 ALPHA-3])
go
ALTER TABLE [APP].[tblCountry] ADD CONSTRAINT [UQ_TBLCOUNTRY_COUNTRYNAME] UNIQUE NONCLUSTERED ([CountryName])
go
--------/
/------------
Command attempted:
create procedure "sp_MSins_APPtblCountry_msrepl_ccs"
@c1 int,@c2 varchar(80),@c3 char(2),@c4 char(3),@c5 int
as
begin
if exists ( select * from "APP"."tblCountry"
where
)
begin
update "APP"."tblCountry" set
"CountryName" = @c2
,"ISO 3166-1 ALPHA-2" = @c3
,"ISO 3166-1 ALPHA-3" = @c4
,"ISO 3166-1 NUMERIC-3" = @c5
where
end
else
begin
insert into "APP"."tblCountry"(
"CountryName"
,"ISO 3166-1 ALPHA-2"
,"ISO 3166-1 ALPHA-3"
,"ISO 3166-1 NUMERIC-3"
)
values (
@c2
,@c3
,@c4
(Transaction sequence number: 0x00000016000004F2014500000000, Command ID: 213)
------------/
SQL 2012 :: Split Data From Two Columns In One Table Into Multiple Columns Of Result Table
Jul 22, 2015So I have been trying to get mySQL query to work for a large database that I have. I have (lets say) two tables Table_One and Table_Two. Table_One has three columns: Type, Animal and TestID and Table_Two has 2 columns Test_Name and Test_ID. Example with values is below:
**TABLE_ONE**
Type Animal TestID
-----------------------------------------
Mammal Goat 1
Fish Cod 1
Bird Chicken 1
Reptile Snake 1
Bird Crow 2
Mammal Cow 2
Bird Ostrich 3
**Table_Two**
Test_name TestID
-------------------------
Test_1 1
Test_1 1
Test_1 1
Test_1 1
Test_2 2
Test_2 2
Test_3 3
In Table_One all types come under one column and the values of all Types (Mammal, Fish, Bird, Reptile) come under another column (Animals). Table_One and Two can be linked by Test_ID
I am trying to create a table such as shown below:
Test_Name Bird Reptile Mammal Fish
-----------------------------------------------------------------
Test_1 Chicken Snake Goat Cod
Test_2 Crow Cow
Test_3 Ostrich
This should be my final table. The approach I am currently using is to make multiple instances of Table_One and using joins to form this final table. So the column Bird, Reptile, Mammal and Fish all come from a different copy of Table_one.
For e.g
Select
Test_Name AS 'Test_Name',
Table_Bird.Animal AS 'Birds',
Table_Mammal.Animal AS 'Mammal',
Table_Reptile.Animal AS 'Reptile,
Table_Fish.Animal AS 'Fish'
From Table_One
[Code] .....
The problem with this query is it only works when all entries for Birds, Mammals, Reptiles and Fish have some value. If one field is empty as for Test_Two or Test_Three, it doesn't return that record. I used Or instead of And in the WHERE clause but that didn't work as well.
Table Size And Database Size
Mar 2, 2008Hi,
i use this script that show me the size of each table and do the sum of all the table size.
SELECT
X.[name],
REPLACE(CONVERT(varchar, CONVERT(money, X.[rows]), 1), '.00', '') AS [rows],
REPLACE(CONVERT(varchar, CONVERT(money, X.[reserved]), 1), '.00', '') AS [reserved],
REPLACE(CONVERT(varchar, CONVERT(money, X.[data]), 1), '.00', '') AS [data],
REPLACE(CONVERT(varchar, CONVERT(money, X.[index_size]), 1), '.00', '') AS [index_size],
REPLACE(CONVERT(varchar, CONVERT(money, X.[unused]), 1), '.00', '') AS [unused]
FROM
(SELECT
CAST(object_name(id) AS varchar(50)) AS [name],
SUM(CASE WHEN indid < 2 THEN CONVERT(bigint, [rows]) END) AS [rows],
SUM(CONVERT(bigint, reserved)) * 8 AS reserved,
SUM(CONVERT(bigint, dpages)) * 8 AS data,
SUM(CONVERT(bigint, used) - CONVERT(bigint, dpages)) * 8 AS index_size,
SUM(CONVERT(bigint, reserved) - CONVERT(bigint, used)) * 8 AS unused
FROM sysindexes WITH (NOLOCK)
WHERE sysindexes.indid IN (0, 1, 255)
AND sysindexes.id > 100
AND object_name(sysindexes.id) <> 'dtproperties'
GROUP BY sysindexes.id WITH ROLLUP) AS X
ORDER BY X.[name]
the problem is that the sum of all tables is not the same size when i make a full database backup.
example of this is when i run this query against my database i see a sum of 111,899 KB that they are 111MB,but when
i do full backup to that database the size of this full backup is 1.5GB,why is that and where this size come from?
THX
SQL 2012 :: Check Columns Before Process And Calculate Size In Byte In SSIS
Apr 10, 2014I need find out the number of columns in flat file before i process that particular file.
I have file name in @filename variable and file path is @filepath variable.
But do not not that how i will check the column name in before i will process that file.
@filePath = C:DatabaseSourceFilesCAHCVSSourceFiles
And I am using for each loop container to read the file one by one and put the file name in @filename variable.
and my file name like
Product_20120607060930.txt
Product_20130708060930.txt
My file structure is:
ID,Name,City,Country,Phone
1,Riya,Pune,India,454564
2,Jiya,New Jersey,India,454564
3,Riya,St Louis,USA,454564
4,Riya,Belleville,USA,454564
5,Riya,Miami,USA,454564
Now what i have to do is i need to make sure that ID,Name,City,County,Phone is there in flat file. if it is not there then i have to send mail to client saying that file is not valid.
Let me know how i will do it.I need to also calculate the size of flat file.
VERY Wide Rows, 8060 Bytes Row Size Limit && SPARSE Columns
Apr 23, 2008Hi,
I€™m trying to create a VERY wide table, with 1,000 columns of type varchar(MAX), nullable.
The CREATE TABLE statement (both in SQL 2005 & 2008), gives the following warning:
Warning: The table "WIDE_TABLE" has been created, but its maximum row size exceeds the allowed maximum of 8060 bytes. INSERT or UPDATE to this table will fail if the resulting row exceeds the size limit.
When I insert data into the table, filling all columns with small, 10-byte string values, I get the following error:
Msg 50000, Level 16, State 1, Procedure sp_pivot, Line 118
Cannot create a row of size 15034 which is greater than the allowable maximum of 8060.
I€™d like to verify this observation: each row is created with 2000 bytes of offset data (2 byte * 1000 columns), 125 bytes for null bitmap (1000 columns / 8 bits) and some more €śwasted€? row information. This leaves less than 6K for the data itself. But since not all columns can fit within the page, forwarding pointers in the row need to be created, 24 byte per column, which very quickly add up to more than 8K, thus the error. So the 8K limit is met for much less columns than the max 1024 column restriction.
Furthermore, in SQL 2008, SPARSE columns will not solve the problem (maybe save some €śmetadata€? space in case the columns are null, but if not, I€™m with the same problem again, or even worse, since now each value takes more storage space. The max 30,000 columns in 2008 is only for cases where the column values are really sparse€¦
Is this the right observation? if so, is there a workaround besides splitting to multiple tables?
Thanks,
Aviv.
Dumping Rows Of 2 Columns Of A Table To A Different Table With Different No Of Columns
Sep 19, 2007
Hi,
I have two tables
Table Source
{
category varchar(20),
LastUpdate datetime
}
Table Destination
{
SubjectId varchar(20),
SubjectDate datetime,
category varchar(20),
LastUpdate datetime
}
Please note that the number columns are different in each table.
I wanted to dump the data of Source table to Destination table. I meant to say that the rows of 2 columns in Source table to last 2 rows of Destination table.
And also my oreder of the columns in Destination table will vary. So i need to a way to dynamically insert the data in bulk. but i will know the column names for sure before inserting.
Is there anyway to bulk insert into these columns.
Your quick response will be appreciated
~Mohan Babu
SQL 2005 Resize Initial Log Size: MODIFY FILE Failed. Specified Size Is Less Than Current Size.
Sep 4, 2007
I am trying to resize a database initial log file from 500M to 2M. I€™m using€?
ALTER DATABASE <DBNAME> MODIFY FILE ( NAME = <DBLOGFILENAME, SIZE = 2 ) "
And I'm getting "MODIFY FILE failed. Specified size is less than current size." I tried going into the database properties and setting the log file to 2M, but it doesn€™t keep the changes.
Any help with this process?
Transact SQL :: Select And Parse Json Data From 2 Columns Into Multiple Columns In A Table?
Apr 29, 2015I have a business need to create a report by query data from a MS SQL 2008 database and display the result to the users on a web page. The report initially has 6 columns of data and 2 out of 6 have JSON data so the users request to have those 2 JSON columns parse into 15 additional columns (first JSON column has 8 key/value pairs and the second JSON column has 7 key/value pairs). Here what I have done so far:
I found a table value function (fnSplitJson2) from this link [URL]. Using this function I can parse a column of JSON data into a table. So when I use the function above against the first column (with JSON data) in my query (with CROSS APPLY) I got the right data back the but I got 8 additional rows of each of the row in my table. The reason for this side effect is because the function returned a table of 8 row (8 key/value pairs) for each json string data that it parsed.
1. First question: How do I modify my current query (see below) so that for each row in my table i got back one row with 19 columns.
SELECT A.ITEM1,A.ITEM2,A.ITEM3,A.ITEM4, B.*
FROM PRODUCT A
CROSS APPLY fnSplitJson2(A.ITEM5,NULL) B
If updated my query (see below)Â and call the function twice within the CROSS APPLY clause I got this error: "The multi-part identifier "A.ITEM6" could be be bound.
2. My second question: How to i get around this error?
SELECT A.ITEM1,A.ITEM2,A.ITEM3,A.ITEM4, B.*, C.*
FROM PRODUCT A
CROSS APPLY fnSplitJson2(A.ITEM5,NULL) B, Â fnSplitJson2(A.ITEM6,NULL) C
I am using Microsoft SQL Server 2008 R2 version. Windows 7 desktop.