System SP That Will Retrieve Index Include Columns?
Jan 30, 2008
Hi,
SQL Server 2005 has a new very useful feature for creating non-clustered indexes called INCLUDE <columns> which are very helpful when trying to create covering indexes.
Does anyone know of a way to retrieve these INCLUDE columns through any of the system metadata tables? The sp_helpIndex stored procedure is what I currently use but that only returns the (sorted) index columns and not the include columns.
Usually it is better to include the columns in the index that are in where clause, select list and join.I am thinking that the columns in the selected list is better to keep as index columns and the columns that are in the where clause is better to keep in key columns.Where do we use join column is it better to create as main key column or included column.
hi i want to retrieve all columns for all tables (for all databases) by this system sp : Code Snippetexec sp_msforeachtable 'exec sp_columns ''?''' but when i execute this script, sql server return number of empty result set, how to solve this problem ? thanks.
We today have 3 different indexes on a table that look like this CREATE INDEX IX_01 ON TORDLOG ([REGDAT]) INCLUDE ([ORDENR], [SUBNRX]) CREATE INDEX IX_02 ON TORDLOG ([REGDAT]) INCLUDE ([ORDENR], [SUBNRX], [KUNDNR], [ALFKOD], [SUMMSP], [SUMMPP], [SUMMBP]) CREATE INDEX IX_03 ON [TORDLOG] ([REGDAT]) INCLUDE ([ORDENR], [SUBNRX], [RADNRX], [KUNDNR], [ALFKOD], [SUMMSP], [SUMMPP], [SUMMBP]) I want to combine the index to only 1 index; How do can combine all the include columns to one large? Or shall keep all index. Bit bad on how to handle include columns. Or just create new index with regdat and forget all about include? CREATE INDEX IX_02 ON TORDLOG ([REGDAT])
OR
CREATE INDEX IX_02 ON TORDLOG ([REGDAT]) INCLUDE (ALL COLUMNS)
We have an application group that wants to pull date from SQL Server and write it to text file on the server. They want the file format to be 12100_YYYMMDDHHMM.fr1 for one set of data, 12100_YYYMMDDHHMM.fr2 for a second set...and so on. The '12100' is fixed, but the rest of the file name will always have to include the system date/time. Is there an easy way to do this within a DTS package (when writing to the output file)? I would really appreciate help on this. Thank you.
I have a database where records are Inserted by an external process. There is no updating or deleting of the data once inserted. The table in question has a Clustered Index on the Machine_ID (integer) (data is from manufacturing processes). Each record bears a start and end time. Most queries involve the Machine, a time span (start time between to points in time), the Downtime Cause, and the Running Mode.
I want to add an index on the Start Time, the Downtime Cause, and the Runtime Mode.
My question is: should this new index also contain the Machine_id column or does the existence of the Clustered Index already on that column negate its need in the new index?
RC - Dedicated to only creating original mistakes!
What is the equivalent for INCLUDE clause (in Create index syntax) in SQL Server 2000. SQL Server 2005 will support Include clause in Create index syntax . How to attain it in SQL Server 2000
Example : I have below query executable in SQL Server 2005
CREATE INDEX Index_Name ON mytable(col1 ASC) INCLUDE (name,id);
What is the equivalent for the above query in SQL server 2000
How to include row values as columns in my select query. I have a table that stores comments for different sections in a web application. In the table below, I would like display each comment as a new column. I only want one row for each record_ID.
Existing table layout
table name - tblcomments Record_ID Comment_Section_ID Comment 1 5 Test 5 comment 1 7 Test 7 comment 2 5 New comment 2 7 Old comment 3 5 Stop 3 7 Go
Desired table layout table name - #tempComment Record_ID Comment_Section_5 Comment_Section_7 1 Test 5 comment Test 7 comment 2 New comment old comment 3 Stop Go
Once I figure out how to get the data in the layout above, I will need to join the table with my record table.
table name - tblRecord Record_ID Record_Type_ID Record_Status 1 23 Closed 2 56 Open 3 67 Open 4 09 Closed 5 43 In progress
I would like to be able to join the tables in the query below for the final output.
Select r.Record_ID, r.Record_Type_ID, r.Record_Status, c.Comment_Section_5, c.Comment_Section_7 from tblRecord r left outer join #tempComment c on r.record_ID = c.record_ID
How I can get the data in the desired #tempComment table layout mentioned above?
Based on a table like below I have created a report so that I can compare number of items in the main warehouse (LOCATION1) and the outlets (LOCATION2 and LOCATION3).
Now the issue starts when I add a parameter to my report for user to choose which outlets (LOCATIONs) he wants in the equation. I know how to make a column disappear based on parameter value but how to take it out of equation? At the moment when user selects only LOCATION2 and not LOCATION3 then data is not filtered correctly:
Ideally I would like a user to select random outlets (warehouse would be static on the report) and compare one or multiple and only show records that are 0 in the outlets.
As I am creating the non-clustered indexes for the tables, I dont quite understand how dose it really matter to put the columns in the index key columns or put them into the included columns of the index?
I am really confused about that and I am looking forward to hearing from you and thank you very much again for your advices and help.
I want to know the status of an index whether it is corrupted or it needs to be reindexed etc ?
I used the sp_MShelpindex tablename stored procedure to retrieve the status also. In the status column it is showing as 0,2 and 2000 values . what are these values ?
I just ran the Database Engine Tuning Advisor on a relative complex query to find out if a new index might help, and in fact it found a combination that should give a performance gain of 94%. Fair enough to try that.
What I wonder about: The index I should create contains 4 columns, the last of them being the Primary Key column of the table, which is also my clustered index for the table. It is an identity integer btw.
I think I remember that ANY index does include the clustered one as lookup into the data, so having it listed to the list of columns will not help. It might at worst add another duplicate 4 bytes to each index entry.
Right? Wrong? Keep the column in the index, or remove it since it is included implicit anyway?
On daily basis I need to generate excerpts by mean of Excel. Prior to sql25k I used to play with Enterprise Manager and pick up the name of all the columns for a table very easily doing this
select top 1 f1,f2,-.. from table
name age enric 80
How do I such thing from Sql Management Studio?? It's a silly thing, I know, but it's very useful for me because when I've got those columns then I can do paste them perfectly into .XLS. Otherwise I see forced to write one by one and sometimes tables have more than 60 columns
It's not useful generate a CREATE TABLE script or launch SP_HELP <MYTABLE> because I obtain the name of the columns in vertical no horizontal.
Hello all. I need to extract the column names that form the primary key group on a table in SQL Server. I have a table called Account and it contains ten columns. The primary key consists of two columns - MasterAccountID, AccountID. This primary key is a unique constraint and is clustered (it acts as an index as well as a primary key group). I have tried the following to no avail:exec sp_pkeys Account -> returns no rowsexec sp_helpindex Account -> throws an error stating that the object 'Account' does not existIf I run the following SQL statement, I can see all of the PK_* constraints in the database, so I know they are there:select * from information_schema.table_constraintswhere constraInt_type IN ('PRIMARY KEY','FOREIGN KEY') Again, I need to be able to specify a table name and have it return the columns (don't care if it returns extra fields) that make up the primary key fields for that table. Thanks!
I have two tables that have no relation. However, both have a column which has a field of nvarchar(50) that I want to retrieve together in one operation and bind to a DropDownList in a sorted fashion. So, what I'm trying to achieve is this: 1. SELECT name FROM table1 2. SELECT name FROM table2 3. Join the two results together and order them alphabetically 4. Return the result set I'm not sure how to do this or even if it's possible. Ideally I'm hoping it can be done in a stored proc.
I need help to build a query that shows me how many columns inside a range on columns are null. Example: quantity1;quantity2;quantity3;quantity4;quantity5; quantity6;quantity7;
Hi guys, Working on a MS Access database, I have a table named "myTable" which contains several fields. I just want to retrieve all the fields (columns) in the myTable, without retrieving Col1 and Col2 What should my SQL string be?
I am using Query Writer (should be SQL 2005) and have included the following code.
The end result: -should retrieve columns and display the count for two different data sources that were added by personnel in a specific department.
Problem: results are returned but not accurate. The code below works just fine and returns the results for all spot buy orders added by personnel in the sales department. However, I want to add a column in the same report that also counts blanket orders from the exact same table added by personnel in the sales department. The database uses views (v) in lieu of dbo.
If I substitute COUNT(T4.PO_Type) AS 'Spot Buy Added' with COUNT(T4.PO_Type) AS 'Blanket Added' I also get accurate results for the blanket order. IE separately they work just fine. If I try to combine the two that is where the trouble begins.
What am I doing incorrectly when I try to add the criteria/code for the additional column to count the blanket orders?
Anybody had experience dropping the system generated index?
I tried to drop some auto-generated index which usually have name like _WA_Sys_[column name}_07F6335A. Then I follow the table.index name rule. It always show no such index exists in the database. But I can query these indexes in sysindexes and verify they are there. What went wrong?
SQL SERVER 2000System let's you alter the system tables and add indexes. However, it won'tlet you drop the index afterward.Anybody know how to drop an index on a system table?Thanks,Kevin
Till recently we were using the following code to retreive schema information of columns of tables
Dim schemaTable = connection.GetOleDbSchemaTable( _ System.Data.OleDb.OleDbSchemaGuid.Columns, _ New Object() {Nothing, Nothing, tableName, Nothing})
Now instead of getting the name of table (which i was using as param for filtering) i'm going to receive a sql-query. Now my question is if I were to get a query like the following :
I run dbcc checkdb on one of my databases and I get the following message....
Server: Msg 2511, Level 16, State 1, Line 0 Table Corrupt: Object ID 12, Index ID 0. Keys out of order on page (1:7364), slots 120 and 121. CHECKDB found 0 allocation errors and 1 consistency errors in table 'sysdepends' (object ID 12). CHECKDB found 0 allocation errors and 1 consistency errors in database 'DMBEN'. repair_fast is the minimum repair level for the errors found by DBCC CHECKDB (DMBEN ).
I then run dbcc checkdb ('DMBEN',repair_rebuild) with no_infomsgs and I get the same messages...nothing was fixed.
Any ideas what I can do now. I tried dropping and recreating the index but the problem is on a system database and SQL won't let me drop the index.
There is a index: CustomerInfo_1 with keys: customerId, EnteryDate DESC I could not find where the order of index key (i.e. whether the key is ascending or descending) is stored? I tried system tables such as sysindexes and sysindexkeys tables. But could not find it. Any help in this regard will be truly appreciated.
There is a index: CustomerInfo_1 with keys: customerId, EnteryDate DESC I could not find where the order of index key (i.e. whether the key is ascending or descending) is stored? I tried system tables such as sysindexes and sysindexkeys tables. But could not find it. Any help in this regard will be truly appreciated.
Hi All,I have one question about many "or" operation make system chooseincorrect indexThere is one table TT (C1 VARCHAR(15) NOT NULL,C2 VARCHAR(15) NOT NULL,C3 VARCHAR(15) NOT NULL,C4 VARCHAR(15) NOT NULLC5 VARCHAR2(200),)Primary Key TT_PK (C1, C2, C3, C4)SELECT C1, C2, C3, C4 FROM TT WHERE C1 = 'TEST' AND ((C2 ='07RES' AND C3 = '00000' AND C4 = '02383') OR (C2 = '07RES' ANDC3 = '00000' AND C4 = '02382') OR (C2 = '07RES' AND C3 = '00000'AND C4 = '02381') OR (C2 = '07RES' AND C3 = '00000' AND C4 ='02380') OR (C2 = '07RES' AND C3 = '00000' AND C4 = '02379') OR(C2 = '07RES' AND C3 = '00000' AND C4 = '02378') OR (C2 = '07RES'AND C3 = '00000' AND C4 = '02377') OR (C2 = '07RES' AND C3 ='00000' AND C4 = '02376') OR (C2 = '07RES' AND C3 = '00000' ANDC4 = '02375') OR (C2 = '07RES' AND C3 = '00000' AND C4 ='02374') OR (C2 = '07RES' AND C3 = '00000' AND C4 = '02373') OR(C2 = '07RES' AND C3 = '00000' AND C4 = '02372').... about 100 or operationsOR (C2 = '07COM' AND C3 = '00000' AND C4 = '00618') OR (C2 ='07COM' AND C3 = '00000' AND C4 = '00617') OR (C2 = '07COM' ANDC3 = '00000' AND C4 = '00616') OR (C2 = '07COM' AND C3 = '00000'AND C4 = '00608') )The system choose index prefix, and query all index leaf withC1='TEST'Prefix: [dbo].[TT].C1 = 'TEST'After I reduce the OR operators to 50, it use choosePrefix: [dbo].[TT].C1, [dbo].[TT].C2,[dbo].[TT].C3,[dbo].[TT].C4='TEST, '07RES', '00000', '02383'Then Merge Join, it is very quick,Can anyone help on this, do I have to reduce the OR operator to 50?Thanks in advance!
Recently upgraded SQL Server 2005 x64 to SP2 and upto Build 3159. Since then the Maintenance Plan for Index Reorgs has failed with a System.OutOfMemoryException error. No other errors are logged anywhere. The plan report file has no information either.
Just wonder if system base tables always use clustered index? I am using SQL Server 2005 and find sys.sysidxstats base table is using heap, not clustered index. Why?
Hey All, I am developing a data acquistion system which monitors the amount of energy that a user consumes in different parts of a house and displays the information in real time on their computer screen. I am collecting the data through tranducers attached to the circuit breakers in the breaker box and sending the data to analog-to-digital converter channels in a MCU. I am retrieving the data from the serial port and storing it to a text file. Each line of data in the text file represents three fields which are separated by commas. I will be reading data from multiple data collection boxes so the first field is the unit number, the second fied represents the analog-to-digital converter channel number from each unit, and the third field is the data that is collected from the ATD channel. I am trying to use SSE to retrieve the data from the text file, and parse each line of data into individual columns in a databse. Then I want to be able to extract the data associated with a particular ATD channel number from the databse and display it in the appropriate text field on a windows form. I've got the MCU programmed. I have no problem collecting the data from the serial port, and I can do the visual basic programming okay. I have absolutely no clue how to read the data into the database, continuosly read new values into the databse, and then access the stored data to update the text fields on the form. Please help if you can, I've been working on this specific problem for a couple of weeks and I'm not making any progress. Thanks.
How do you index through a set of Columns Programmatically using SQL. I have a Table all the columns have the same data for different dates. Column names are Col_0, Col_1, Col_2,.....Col_100, Col_101. I need to perform the same calculation on each column to manipulate the data into a different table. Is it possible to do a While loop that changes the Column name in a SELECT statement. I have tried to do this but can't seem to get it to work. Please help !
