SQL Server 2012 :: Why Indexes On Table Slow Down DML Operation On Table
Mar 7, 2014Why the Indexes on table slow down the DML operation on table, what is the exact reason?
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SQL 2012 :: Identify Unused Indexes In Table
Jan 15, 2015How to find if there is a query that can be written on DMV's which will be able to retrieve the indexes that are not being used in a table.
View 2 Replies View RelatedSQL 2012 :: Way To Remove All Indexes From A Table With One Single Command
Sep 29, 2015IS there a way to remove all indexes from a table with one single command ( without having to know what the index name is ) ;
View 2 Replies View RelatedSQL 2012 :: Performance Limit On Number Of Indexes Per Table / Database
Oct 1, 2014Is there a performance limit on the number of indexes per table / database ? With Filtered indexes there appear to be many more opportunities for more finely defined, and therefore smaller indexes resulting in many more indexes on a single table.
View 4 Replies View RelatedSQL Server 2012 :: Compare Two Table Data And Insert Changed Field To Third Table
Aug 12, 2014I want Compare two Table data and insert changed field to the third table ...
View 9 Replies View RelatedSQL Server 2012 :: Stored Procedures Compiles Even When There Is No CREATE TABLE For A Temp Table
Feb 11, 2015i am inserting something into the temp table even without creating it before. But this does not give any compilation error. Only when I want to execute the stored procedure I get the error message that there is an invalid temp table. Should this not result in a compilation error rather during the execution time.?
--create the procedure and insert into the temp table without creating it.
--no compilation error.
CREATE PROC testTemp
AS
BEGIN
INSERT INTO #tmp(dt)
SELECT GETDATE()
END
only on calling the proc does this give an execution error
SQL Server 2012 :: Data Transfer From Staging Table Into Main Table
Jan 14, 2014What is the best way to transfer data from the staging table into the main table.
Example:
Staging Table Name: TableA_satge (# of rows - millions)
Main Table Name: TableA_main (# of rows - billions)
Note: Staging table may have some data same as the main table.
Currently I am doing:
- Load data into staging table (TableA_stage)
- Remove any duplication of rows from the staging table (TableA_stage)
- Disable all indexes on main table (TableA_main)
- Insert into main table (TableA_main) from staging table (TableA_stage)
- Remove any duplication of rows from the main table using CTE (TableA_main)
- Rebuild indexes on main_table (TableA_main)
The problem with the above method is that, it takes a lot of time and log file size grows very big.
SQL Server 2012 :: Join To Find All Records From One Table That Do Not Exist In Other Table
Apr 29, 2014I have table 'stores' that has 3 columns (storeid, article, doc), I have a second table 'allstores' that has 3 columns(storeid(always 'ALL'), article, doc). The stores table's storeid column will have a stores id, then will have multiple articles, and docs. The 'allstores' table will have 'all' in the store for every article and doc combination. This table is like the master lookup table for all possible article and doc combinations. The 'stores' table will have the actual article and doc per storeid.
What I am wanting to pull is all article, doc combinations that exist in the 'allstores' table, but do not exist in the 'stores' table, per storeid. So if the article/doc combination exists in the 'allstores' table and in the 'stores' table for storeid of 50 does not use that combination, but store 51 does, I want the output of storeid 50, and what combination does not exist for that storeid. I will try this example:
'allstores' 'Stores'
storeid doc article storeid doc article
ALL 0010 001 101 0010 001
ALL 0010 002 101 0010 002
ALL 0011 001 102 0011 002
ALL 0011 002
So I want the query to pull the one from 'allstores' that does not exist in 'stores' which in this case would the 3rd record "ALL 0011 001".
SQL Server 2012 :: Table Returning Function With Input Table Name As Parameter
Nov 19, 2014I'm using SS 2012.
I started with an inline table returning function with a hard coded input table name. This works fine, but my boss wants me to generalize the function, to give it in input table parameter. That's where I'm running into problems.
In one forum, someone suggested that an input parameter for a table is possible in 2012, and the example I saw used "sysname" as the parameter type. It didn't like that. I tried "table" for the parameter type. It didn't like that.
The other suggestion was to use dynamic sql, which I assume means I can no longer use an inline function.
This means switching to the multi-line function, which I will if I have to, but those are more tedious.
Any syntax for using the inline function to accomplish this, or am I stuck with multi-line?
A simple example of what I'm trying to do is below:
Create FUNCTION [CSH388102].[fnTest]
(
-- Add the parameters for the function here
@Source_Tbl sysname
)
RETURNS TABLE
AS
RETURN
(
select @Source_Tbl.yr from @Source_Tbl
)
Error I get is:
Msg 1087, Level 16, State 1, Procedure fnTest, Line 12
Must declare the table variable "@Source_Tbl".
If I use "table" as the parameter type, it gives me:
Msg 156, Level 15, State 1, Procedure fnTest, Line 4
Incorrect syntax near the keyword 'table'.
Msg 137, Level 15, State 2, Procedure fnTest, Line 12
Must declare the scalar variable "@Source_Tbl".
The input table can have several thousand rows.
Indexes On Table Variable Of Table Valued Function
Jan 6, 2004Hi there,
Can someone tell me if it is possible to add an index to a Table variable that is declare as part of a table valued function ? I've tried the following but I can't get it to work.
ALTER FUNCTION dbo.fnSearch_GetJobsByOccurrence
(
@param1 int,
@param2 int
)
RETURNS @Result TABLE (resultcol1 int, resultcol2 int)
AS
BEGIN
CREATE INDEX resultcol2_ind ON @Result
-- do some other stuff
RETURN
END
SQL Server 2012 :: Insert Into Table With Identity Columns From Another Table
Dec 23, 2013I just created a new table with over 100 Columns and I need to populated just the first 2 columns.
The first columns to populate is an identify column that is the primary key. The second column is a foreign_key to an other column and I am trying to populate this columns with all the values from the foreign_key value. This is what I am trying to do.
column1 = ID
column2= P_CLIENT_D
SET IDENTITY_INSERT PIM1 ON
INSERT INTO PIM1 (P_CLIENT_ID)
SELECT
Client.ID
FROMP_Client
So I am trying to insert both an identity values and a value from an other table while leaving the other columns blank. How do I go about doing this.
SQL Server 2012 :: Update Table From Variable Table Column?
Oct 6, 2014I am trying to use a stored procedure to update a column in a sql table using the value from a variable table I getting errors because my syntax is not correct. I think table aliases are not allowed in UPDATE statements.
This is my statement:
UPDATE [dbo].[sessions_teams] stc
SET stc.[Talks] = fmt.found_talks_type
FROM @Find_Missing_Talks fmt
WHERE stc.sessionid IN (SELECT sessionid FROM @Find_Missing_Talks)
AND stc.coupleid IN (SELECT coupleid FROM @Find_Missing_Talks)
SQL Server 2012 :: Return A Table Of Table-names Dynamically?
Sep 14, 2015I have a function that returns a table from a comma-delimited string.
I want to take this a step further and create a function that will return a set of tablenames in a table based on a 'group' parameter which is a simple integer...1->9, etc.Obviously, what I am doing is not working out.
CREATE FUNCTION dbo.fnReturnTablesForGroup
(
@whichgroup int
)
RETURNS @RETTAB TABLE (
TABLENAME VARCHAR(50)
[code]....
SQL 2012 :: Current Operation Cancelled Because Another Operation In Transaction Failed
Nov 20, 2013I'm using SQL Server 2012 Analysis services in Tabular mode and connected to Oracle Database and while importing, I'm getting below error after importing some rows.
OLE DB or ODBC error: Accessor is not a parameter accessor.. The current operation was cancelled because another operation in the transaction failed.
SQL Server 2008 :: Logic To Rebuild Only Clustered Indexes / Skipping To Rebuild Non Clustered Indexes In Same Table
Jun 25, 2015I have a requirement to only rebuild the Clustered Indexes in the table ignoring the non clustered indexes as those are taken care of by the Clustered indexes.
In order to do that, I have taken the records based on the fragmentation %.
But unable to come up with a logic to only consider rebuilding the clustered indexes in the table.
create table #fragmentation
(
FragIndexId BigInt Identity(1,1),
--IDENTITY(int, 1, 1) AS FragIndexId,
DBNAME nvarchar(4000),
TableName nvarchar(4000),
[Code] ....
SQL Server 2012 :: Inserting Row From A Table Into Another Table From SSIS
Sep 18, 2014I have a 2010 SSIS package where I am reading csv files with different fields and formatted data, I have created separate packages for each file and I am formatting the data to fit the final destination tables data elements, I've been instructed to create 7 separate packages to read each file and the format the data from the 7 csv files, and insert into their table tbl1, tbl2, tbl3...etc then, I'm taking a execute sql task and wanting to insert the tbl1, tbl2, tbl3...etc into destination table that will be the final table for all reports and other uses.
1- should I create a ID?
2- these files will be read once a month
3- I want to append the data, not drop and recreate each run,
4- It's 2012 SQL and 2010 SSIS
Each csv file is in a different format, some have 15 columns, other have 8 I have to parse the data, in SP to align with the fields in the destination table.
5- Can I force RowID to be the next auto gen number from tbl1,for the start of insert for tbl2, then last row of tbl2 for insert of tbl3???
SQL Server 2012 :: Capture Changes In Table And Store It In Another Table
Dec 25, 2014I need to capture changes in my table and store it in another table. Here is how my table would look like.
CREATE TABLE [dbo].[ABC](
[Hno] [nchar](10) NULL,
[Status] [smallint] NULL,
[Date] [datetime] NULL
) ON [PRIMARY]
[Code] ....
In return I need to check column Status for whenever the value has changed and need to store that in my table. If there are two records for which value in column Status is same, I need to pick only one of the records and that being the earliest of them and therefore the Date field is mentioned in my table . My output should be something like below.
100 02014-12-20 00:55:44.667
100 12014-12-22 00:55:44.723
100 02014-12-24 00:55:44.723
100 12014-12-26 00:55:44.723
SQL Server 2012 :: Create New Table From Multiple Table?
Feb 19, 2015I need to create a table from these 2 tables and want all the data. Table 1 has 15000 records and table has around 1000 records.
I have 2 tables.
SELECT [UniqueID]
,[Company]
,[CustID]
,[CustomerName]
,[FiscYr]
[Code] ....
SQL Server 2012 :: Create Table From Rows Of A Different Table
Mar 6, 2015I am using SQL SERVER 2012..I have the following table:
tbtab1
| A | B | C |
| 1 | Pluto | NULL |
| 2 | Pippo | NULL |
| 3 | Rossi | NULL |
I want to creare a new empy table with the columns name contained into the column B of the first table; the following should my results:
tbtab2
| Pluto | Pippo | Rossi |
SQL Server 2012 :: Update Table Using CTE Or Using Inner Query On Same Table
Jul 29, 2015To avoid locking/blocking, or in transaction scope, we are trying make a common practice of writing coide for update commands in our all SPs based on primary key columns in where clause. I have a following scenario...
UPDATE [dbo].[TL_CST_Locker_Issuance] SET
[isActive] = 0
WHERE
LockerIssuanceId IN (SELECT LockerIssuanceId
[Code] ...
What is the better approach and should be followed to avoid locks and gain performance or best approach.
How To Find Filegroups For A Given Table And Table's Indexes
Oct 6, 2006Hi
I am using SQL Server 2005 Developer Edition.
I want a list of the following things from the database: -
Table Name , FileGroup Table resides on
Table Name, Index Name, FileGroup index resides on
To put it simply, consider the following example:-
Lets say I have a table XYZ in my database created on Filegroup F1. It has a PK PK1 nonclustered index on Filegroup F2.
List1
-------
XYZ F1
List2
---------
XYZ PK1 F2
Please do not tell me of sp_help <table> option
Regards
Imtiaz
SQL Server 2012 :: Copy A Table With 200 Million Rows To Another Table On Same Server
Aug 11, 2014I need to use Bulk insert statement for copying a table with 200 million rows to another table on the same server...the table has no primary key or identity column.... script for BULK INSERT ...
View 9 Replies View RelatedSQL Server Admin 2014 :: Backup Of Indexes For A Particular Table?
Aug 9, 2014how to take backup of indexes for a particular table.
View 1 Replies View RelatedSQL Server Admin 2014 :: Backup Of Indexes For A Particular Table
Aug 9, 2014How to take backup of indexes for a particular table.
View 5 Replies View RelatedWhy Is SQL Server 7 So Slow? I Only Have About 11500 Rows In The Table
Sep 1, 2000I wonder how SQL Server 7 can be so slow!! I use an external application (that we made) which reads information from SQL Server 7 databases. What I mean is, one of my allications reads information about "users" and there is about 11500 rows in the table with 34 columns in each. My application shows information about one person at a time. And then there's a scrollbox at the bottom where one can scroll to see other users (about 11500 different users). When I'm using the scrollbars to move down and get information about other users, I see that the CPU-usage is 100% all the time. And the "hour-glass" (windows thingy to show that there's a delay) is shown for maybe a second. And at first it takes almost 10 seconds to (I suppose?) read in the information from the table into my application and show information about the first user.
I don't think it should take almost a second or so to just scroll this list of users. How can SQL Server be so slow? I have 196 megabyte ram on this computer that I use for development. All databases together are less than 15 megabytes. Less than 10 megabytes I suppose.
I mean, in Access97 it was much faster but whas gettins slower for certain occurances with much more data int he tables, and the whole idea of converting the system to SQL Server7 was to got fast responsetimes.
Just to clarify, the client-application and the SQL Server resides on the same computer right now so they don't have to go over some kind of network-conenction etc.
What is the big problem here?
regards, Bob Nachbar.
Copying Table Data From SQL Server 2005 To SQL Server 2000 - Very Slow When Using OLEDB Source And Destination Sources?
May 8, 2006An SSIS package to transfer data from a DB instance on SQL Server 2005 to SQL Server 2000 is extremely slow. The package uses an OLEDB Source to OLEDB Destination for data transfer which is basically one table from sql server 2005 to sql server 2000. The job takes 5 minutes to transfer about 400 rows at night when there is very little activity on the server. During the day the job almost always times out.
On SQL Server 200 instances the job ran in minutes in the old 2000 package.
Is there an alternative to this. Tranfer Objects task does not work as there is apparently a defect according to Microsoft. Please let me know if there is any other option other than using a Execute 2000 package task or using an ActiveX Script to read records from one source and to insert them into the destination source, which I am not certain how long it might take and how viable will that be?
Any inputs will be much appreciated.
Thanks,
MShah
SQL Server 2012 :: Joining Dim To Fact Table Where Dim Table Key Exists In Multiple Fact Columns
Oct 26, 2015Say you have a fact table with a few columns that all reference the same key column in a dimension table, you want to write a view to return the information for those keys?
USE MyTestDB;
GO
SET NOCOUNT ON;
IF OBJECT_ID ('dbo.FactTemp' ,'U') IS NOT NULL
DROP TABLE dbo.FactTemp;
[Code] ....
I'm using very small data at the moment, and the query plan and statistics don't really say which way.
SQL Server 2012 :: Select Statement That Take Upper Table And Select Lower Table
Jul 31, 2014I need to write a select statement that take the upper table and select the lower table.
View 3 Replies View RelatedCopy A Database Table With All Its Data, Indexes And Constraints To A New Table In The Same Database
Feb 4, 2008Hi,
How can I copy a database table with all its data, indexes and constraints to a new table in the same database in sql server 2005
Table Filter Operation Optimization
Aug 27, 2007Table filter operation where I want to filter against any combination from any of the available fields:
table a(f1 int, f2 int)
2 indexes - first by field f1, second by field f2
data - many records like (f1=1, f2=2), and many records like (f1=3, f2=4)
sql: select * from a where f1=1 and f2=4
result will be - no records, but full table scan is required, indexes are not used
question - how to optimize above structure, but do not create compound index by (f1, f2)?
if we will have many fields (lets say 10), which can be used in filter in any combination we will need to create 10! Indexes. Any way to avoid or optimize it for a high volume searches?
SQL Server 2012 :: Trying To Format Hours Of Operation For Businesses
Jun 24, 2015I have a data file listing open and close hours for the day of the week. I need to format it like
Mon-Thurs 7:00 AM - 5:00 PM
Fri 8:00 AM - 5:00 PM
Sat 8:00 AM - 1:00 PM
Sun Closed
Here is what the data looks like now.
Mon OpenMon ClosedTue OpenTue ClosedWed OpenWed ClosedThu OpenThu ClosedFri OpenFri ClosedSat OpenSat ClosedSun OpenSun Closed
7:30 AM5:30 PM7:30 AM5:30 PM7:30 AM5:30 PM7:30 AM5:30 PM7:30 AM5:30 PMClosed Closed
7:00 AM6:00 PM7:00 AM6:00 PM7:00 AM7:00 PM7:00 AM6:00 PM7:00 AM6:00 PM8:00 AM5:00 PMClosed
There seems like I would end up 5 lines max?
Could Not Complete Cursor Operation Because The Table Schema Changed
May 30, 2006Microsoft SQL Server 2000 - 8.00.2039
Got this error:
Could not complete cursor operation because the table schema changed after the cursor was declared. SQLCode: 16943 SQLState: HY000
Is this a known issue? I suspect the application logic may cause this error. Please advise.
Thanks a lot!
SQL Server 2012 :: Solve Null Value Is Eliminated By Aggregate Or Other SET Operation?
Nov 26, 2013I execute the code below
declare @LastDate datetime
SELECT @LastDate = max([LastUpdate])
FROM [exhibitor].[dbo].[blgBelongs]
WHERE (([Table1]=@module1 OR [Table2]=@module2 )or ([Table2]=@module1 OR [Table1]=@module2 )
AND Exists (SELECT [Table1],[Table1ID] FROM [exhibitor].[dbo].[blgBelongs] WHERE table2=30 and table2ID=@dmn_ID))
Before I see @LastDate , I see this warning
Warning: Null value is eliminated by an aggregate or other SET operation.