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.
View 4 RepliesWhat 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
Thanks ,
Sushma
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.
Thanks in advance,
Gordon Radley
hey all,
say i have the following function
SELECT GLF_CHART_ACCT.DESCR1, F1ADR_ADDRESS.ADDR1, F1ADR_ADDRESS.ADDR2,
F1ADR_ADDRESS.ADDR3, F1ADR_ADDRESS.ADDR_CITY, F1ADR_ADDRESS.ADDR_STATE,
F1ADR_ADDRESS.POST_CODE, F1ADR_ADDRESS.PHONE_NBR, F1ADR_ADDRESS.FAX_NBR,
F1ADR_ADDRESS.EMAIL_ADDR_NAME, F1ADR_ADDRESS.CONTACT_NAME,
F1ADR_ADDRESS.CONTACT_TITLE, GLF_CHART_ACCT.ACCNBRI, F1ADR_ADDRESS.ENTITY_UNIQUE_NBR
FROM GLF_CHART_ACCT
INNER JOIN F1ADR_ADDRESS ON (GLF_CHART_ACCT.CHART_NAME = F1ADR_ADDRESS.ENTITY_KEY1)
AND (GLF_CHART_ACCT.ACCNBRI = F1ADR_ADDRESS.ENTITY_KEY2)
GROUP BY GLF_CHART_ACCT.DESCR1, F1ADR_ADDRESS.ADDR1, F1ADR_ADDRESS.ADDR2,
F1ADR_ADDRESS.ADDR3, F1ADR_ADDRESS.ADDR_CITY, F1ADR_ADDRESS.ADDR_STATE,
F1ADR_ADDRESS.POST_CODE, F1ADR_ADDRESS.PHONE_NBR, F1ADR_ADDRESS.FAX_NBR,
F1ADR_ADDRESS.EMAIL_ADDR_NAME, F1ADR_ADDRESS.CONTACT_NAME, GLF_CHART_ACCT.ACCNBRI,
F1ADR_ADDRESS.CONTACT_TITLE, GLF_CHART_ACCT.CHART_NAME, F1ADR_ADDRESS.ENTITY_UNIQUE_NBR,
GLF_CHART_ACCT.SELN_TYPE1_CODE
HAVING CHART_NAME='ARCHART' AND GLF_CHART_ACCT.DESCR1 <> '' AND GLF_CHART_ACCT.SELN_TYPE1_CODE = 'Trade'
AND GLF_CHART_ACCT.DESCR1 LIKE '%" + Search + "%' ORDER BY GLF_CHART_ACCT.DESCR1;
I get errors if not all the fields are included in the group by clause.
what i dont get is why i have to create seperate groups for this query...or am i reading it wrong??
Cheers,
Justin
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?
Hello,
first of all, some facts of the case:
Table Master Table Dimension
ID Code Price ID Name
1 A44333 5000 1 "Scanner"
2 D442 3000 2 "Notebook"
3 D6644 4000 3 "Banana"
I join both tables on ID and search one time for ID and another time for Name. Looks like
(a)
SELECT AVG(Price) From Master JOIN Dimension ON Master.id = Dimension.id
WHERE master.id=1
AND Code like 'A44'
(b)
SELECT AVG(Price) From Master JOIN Dimension ON Master.id = Dimension.id
WHERE Name = 'Scanner'
AND Code like 'A44'
Why does query (b) take longer than query (a)? Dimension has 12 Rows and
Master has about 24M Rows.
For index I did
Create Index IX_Master_ID on Master(ID)
Create Index IX_Master_Code on Master(Code)
Create Index IX_Dimension_ID on Dimension(ID)
Create Index IX_Dimension_Name on Dimension(Name)
I noticed, that when i leave the Code like 'A44' clause, query (a) and (b) do take same time. I'm really confused. Can someone please help me out?
Thank you
Silas
In SQL 2012.A query that joins 2 table, with order by clause doesn't get sorted and the result set is not ordered. This happens when some of the columns in the where criteria are in a unique index which is the index that is used for the join between the 2 tables, and all the columns in the unique index are in the where criteria.In the query plan there is no component for sort.The work around was to drop the unique index, or change it to a non-unique index. Once this was done, the execution plan was changed to add the sort component (even when the index was changed to non-unique and the join was still using this index).
View 4 Replies View RelatedI have a gridview that is based on the selection(s) in a listbox. The gridview renders fine if I only select one value from the listbox. I recive this error though when I select more that one value from the listbox:
Syntax error converting the nvarchar value '4,1' to a column of data type int. If, however, I hard code 4,1 in place of @ListSelection (see below selectCommand WHERE and IN Clauses) the gridview renders perfectly.
<asp:SqlDataSource ID="SqlDataSourceAll" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
SelectCommand="SELECT DISTINCT dbo.Contacts.Title, dbo.Contacts.FirstName, dbo.Contacts.MI, dbo.Contacts.LastName, dbo.Contacts.Suffix, dbo.Contacts.Dear, dbo.Contacts.Honorific, dbo.Contacts.Address, dbo.Contacts.Address2, dbo.Contacts.City, dbo.Contacts.StateOrProvince, dbo.Contacts.PostalCode FROM dbo.Contacts INNER JOIN dbo.tblListSelection ON dbo.Contacts.ContactID = dbo.tblListSelection.contactID INNER JOIN dbo.ListDescriptions ON dbo.tblListSelection.selListID = dbo.ListDescriptions.ID WHERE (dbo.tblListSelection.selListID IN (@ListSelection)) AND (dbo.Contacts.StateOrProvince LIKE '%') ORDER BY dbo.Contacts.LastName">
<SelectParameters>
<asp:Parameter Name="ListSelection" DefaultValue="1"/>
</SelectParameters>
</asp:SqlDataSource>
The selListID column is type integer in the database.
I'm using the ListBox1_selectedIndexChanged in the code behind like this where I've tried using setting my selectparameter using the label1.text value and the Requst.From(ListBox1.UniqueID) value with the same result:
Protected Sub ListBox1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged
Dim Item As ListItem
For Each Item In ListBox1.Items
If Item.Selected Then
If Label1.Text <> "" Then
Label1.Text = Label1.Text + Item.Value + ","
Else
Label1.Text = Item.Value + ","
End If
End If
Next
Label1.Text = Label1.Text.TrimEnd(",")
SqlDataSourceAll.SelectParameters("ListSelection").DefaultValue = Request.Form(ListBox1.UniqueID)
End Sub
What am I doing wrong here? Thanks!
I am fairly new with SQL and still learning. I have used a case statemtent for a column in my select list and want to use the results of that statement's field in my WHERE clause but it is not working for me. Here is the code I have so far:
SELECT
l.loanid,
p.investorid,
l.duedate,
case when pc.duedate >= l.duedate then pc.duedate end as RateDueDate,
pc.interestrate
FROM loan l
inner join participation p on p.loanid = l.loanid
inner join paymentchange pc on pc.loanid = l.loanid
where p.investorid = '12345' and RateDueDate is not null
order by l.loanid, pc.duedate
I want to put the results of this case statment in my where clause like highlighted above but it is not working because RateDueDate is not an actual column in the table. Any help would be greatly appreciated.
Thanks!
How to create a script to input one table name(already indexed) to get list of all index for that table?
View 5 Replies View RelatedHello All,
I have a question about a Select over 2 Tables,
with the Following Scenario (Not all Products (ARTICULOS) haves CARAC's on the CFG_CARAC_ARTICULOS table):
Picture of the tables here:
http://www.pci-baleares.com/pantallazoSql.jpg
We have per example 7 Slots (Motherboard, CPU, VGA Card, RAM, TOWER, etc...)
When we fill the Slot with a CPU-> Then we open the Slot for VGA CARD, we do the Followin Select:
SELECT dbo.ARTICULOS.*
FROM dbo.CFG_CARAC_ARTICULOS INNER JOIN
dbo.ARTICULOS ON dbo.CFG_CARAC_ARTICULOS.ID_ARTICULO = dbo.ARTICULOS.ID_ARTICULO
Ok it brings up ALL Graphic Cards because they dont depends on CPU
Now we go to the Motherboard Slot
And we make the following Select to obtain the compatible Motherboards:
SELECT dbo.ARTICULOS.*
FROM dbo.CFG_CARAC_ARTICULOS INNER JOIN
dbo.ARTICULOS ON dbo.CFG_CARAC_ARTICULOS.ID_ARTICULO = dbo.ARTICULOS.ID_ARTICULO
WHERE
((dbo.CFG_CARAC_ARTICULOS.ID_CARAC = 7) AND (dbo.CFG_CARAC_ARTICULOS.VALOR = 'PCI-E')) AND
((ID_CARAC = 1) AND (VALOR = '775'))
We check the motherboards if they support PCI-E (because we selected a Graphic card of that, and SOCKET 775 because the CPU)
But SQL return 0 Rows, if we do the following Select:
SELECT dbo.ARTICULOS.*
FROM dbo.CFG_CARAC_ARTICULOS INNER JOIN
dbo.ARTICULOS ON dbo.CFG_CARAC_ARTICULOS.ID_ARTICULO = dbo.ARTICULOS.ID_ARTICULO
WHERE
((dbo.CFG_CARAC_ARTICULOS.ID_CARAC = 7) AND (dbo.CFG_CARAC_ARTICULOS.VALOR = 'PCI-E'))
OR
SELECT dbo.ARTICULOS.*
FROM dbo.CFG_CARAC_ARTICULOS INNER JOIN
dbo.ARTICULOS ON dbo.CFG_CARAC_ARTICULOS.ID_ARTICULO = dbo.ARTICULOS.ID_ARTICULO
WHERE
((ID_CARAC = 1) AND (VALOR = '775'))
It return Rows, it happens just if the Where clause haves more as 1 specifications...
Any solution for it? It drives me crazy :D
Thanks and regards
Marc Hägele
Right now I have to do something like this and it is time consuming every time I have to query a specific table...
SELECT lots_of_columns
FROM table
WHERE (column5 = '1' OR column6 = '1' OR column7 = '1' OR column8 = '1' OR column9 = '1' OR column10 = '1' OR column11 = '1' OR column12 = '1')
AND other_query_critiera_here
Typing out the OR statement gets long, time consuming and prone to errors because that first where line with all the ORs can sometimes have 20+ ORs in it. As some insight, the columns are text columns, sometimes they have data, sometimes they are NULL. Sometimes they have the same data (i.e., column5 and column6 and column12 could both have '1' as values).
I have a table (Event_Table) like:
EmployeeID, CustomerID, Date
1, 11, 2014-11-11
2, 13, 2014-12-10
1, 11, 2014-12-21
2, 13, 2015-01-11
1, 11, 2015-03-02
And now I would like to have a summary with a unique Employee/Customer combination and 3 Date columns like:
EmployeeID, CustomerID, Date1, Date2, Date3
1, 11, 2014-11-11, 2014-12-21, 2015-03-02
2, 13, 2014-12-10, 2015-01-11
Dates should be arranged with the first date in Date1, the next in Date2 and the third in Date3 (if there are forth and more dates I don´t care)
Supposing there are three Columns: Countries, Provinces and States.Then when the user enters “USA” for country, it will bring up a list of states, if they enter “Canada” for country, it will bring up a list of provinces, if they enter another country, it will not bring up any list?
View 2 Replies View RelatedThe following returns all base tables within the database of type "varchar":
Code:
SELECT TABLE_SCHEMA, TABLE_NAME, COLUMN_NAME FROM mydb.information_schema.columns
WHERE TABLE_SCHEMA = 'master' AND TABLE_CATALOG = 'mydb'
AND DATA_TYPE IN('varchar')"
AND TABLE_NAME IN(
SELECT TABLE_NAME FROM mydb.information_schema.tables
WHERE TABLE_TYPE = 'BASE TABLE' AND TABLE_CATALOG = 'mydb' AND TABLE_SCHEMA = 'master')
What I then want to do is... For each of these results:
Code:
select [COLUMN_NAME] from [TABLE_SCHEMA].[TABLE_NAME]
WHERE ID = 'test'
Is it possible to do this in one SQL command? Or do I manually have to do it for each in the list from my first query?
According to BOL, columns in an ORDER BY clause do not have to be in the SELECTcolumn list unless the SELECT includes DISTINCT, or the UNION operator.Is this a SQL Server thing, or SQL standard behavior? That is, if I were to writeabsolutely pure SQL-92, must columns in the ORDER BY clause be present in the SELECTlist?
View 1 Replies View RelatedWhen creating a column store index, are there any reasons not to include all columns, besides index size of course? i.e. will the index be more versatile with more columns or should I treat it exactly like its a standard index, putting only necessary columns, in the correct order?
View 1 Replies View RelatedI am trying to tune a process that is running slowly. I analyzed the process using the Database Engine Tuning Advisor, and it recommended the creation of 3 indexes, all non-clustered:
1) ColA, include ColB
2) ColA, include ColC
3) ColA, include ColD
So... I created a single non-clustered index on:
4) ColA, include ColB, ColC, ColD
That should do the same thing, right? A look at my execution plan shows that the index I created is being scanned -- 3 times. What is puzzling me, though, is that the Database Engine Tuning Advisor is still recommending I create these 3 separate indexes, even with the index (4) that I created in existence.
If it matters, ColA, ColB, ColC and ColD are all int FKs.
I have a table with clustered index on that. I have only 5 columns in that table. Execution plan is showing that Index scan occurred. What are the cause of the Index scan how can we change that to index seek?
I am giving that kind of similar query below
SELECT @ProductID= ProductID FROM Product WITH (NOLOCK) WHERE SalesID= '@salesId' and Product = 'Clothes '
I used following query to identify missing indexes:
SELECT mid.statement , mid.included_columns, mid.equality_columns, mid.inequality_columns,
migs.avg_total_user_cost * (migs.avg_user_impact / 100.0) * (migs.user_seeks + migs.user_scans) AS improvement_measure,
'CREATE INDEX [NCIX_' + CONVERT (varchar, mig.index_group_handle) + '_' + CONVERT (varchar, mid.index_handle)
+ '_' + LEFT (PARSENAME(mid.statement, 1), 32) + ']'
+ ' ON ' + mid.statement
[Code] ....
I think I need to only create few if an index is covering all columns then I do not need to create more indexes for separate columns or should I create separate index as suggested?
Similarly:
CREATE INDEX [NCIX_20187_20186_TL_SRV_Stationary_Stock_Transact] ON [TL_SRV_Stationary_Stock_Transaction] ([SerialNo],[StationaryStatus]) GO
CREATE INDEX [NCIX_20189_20188_TL_SRV_Stationary_Stock_Transact] ON [TL_SRV_Stationary_Stock_Transaction] ([StationaryStatus]) INCLUDE ([SerialNo]) GO
[Code] ....
Should I create all indexes above or use minimum number of indexes which covers all columns as mentioned in above create index statements?
Hello all,
how can I select one or more columns from a table by column-index and NOT by columnname?
e.g.:
SELECT tbl1.[1], tbl1.[2], tbl1.[3] FROM Orders AS tbl1
and NOT like this:
SELECT tbl1.OrderNo, tbl1.ProductNo, tbl1.Price FROM Orders AS tbl1
Is that possible in MS-SQL 2000?
Thanks a lot in advance
kind regards
Otto
I am getting error [[Msg 16924, Level 16, State 1, Line 13
Cursorfetch: The number of variables declared in the INTO list must match that of selected columns.]] when i execute below script.
Declare @mSql1 Nvarchar(MAX)
declare @dropuser int
declare @dbname Nvarchar(max)
declare @username Nvarchar(max)
DECLARE Dropuser_Cursor CURSOR FOR
[Code] ....
DECLARE @Tab1 table (ID Int , PS varchar(10),NPS1 varchar(10), NPS2 varchar(10))
INSERT INTO @Tab1
SELECT 1, 'A', 'B', 'C'
UNION ALL
SELECT 2, 'D', 'E', 'F'
UNION ALL
[Code] ....
Need query to get the Result as below
PSPS_Col1PS_Col2NPS1NPS1_Col1NPS1_Col2NPS2NPS2_Col1NPS2_Col2
ANULLNULLBNULLNULLCXYZ123
DAAA111ENULLNULLFNULLNULL
GNULLNULLHNULLNULLINULLNULL
JBBB222KNULLNULLLNULLNULL
By using case statement we can retrieve the data, but looking for alternate way to do it.
Hi I'd like to select two columns out of one column from another table. Example from source table:
Code Block
ID ArtNr EAN
1 4711 51323135
1 4712 84651213
1 4713 84351322
2 4711 86431313
2 4714 23546853
1 4714 54646545
2 4715 64684353
2 4716 65435132
I want to join this table to a base table with one select, and generate the following output. The ID identifies If the ArtNr has an EAN1 or EAN2:
Code Block
ArtNr EAN1 EAN2
4711 51323135 86431313
4712 84651213
4713 84351322
4714 54646545 23546853
4715 64684353
4716 65435132
I have a two tables each having a uniqueidentifier column person_id
I am trying to a select statement where I want a list of the person_id's in one table that are not in another table.
-- insert into wch_needed those who need checked
insert into #wch_needed (person_id, rendered_by )
select distinct e.person_id, e.rendered_by
from #wch_who o, encounter e
where o.person_id not in (select distinct person_id from #wch_have )
and o.person_id = e.person_id
the where conditional
where o.person_id not in (select distinct person_id from #wch_have )
does not work.
How can I do this?
I have a lookup table, as below. Each triggercode can have several service codes.
TriggerCodeServiceCode
BBRONZH BBRZFET
BBRONZH RDYNIP1
BBRONZP BBRZFET
BCSTICP ULDBND2
BCSTMCP RBNDLOC
I then have a table of accounts, and each account can have one to many service codes. This table also has the rate for each code.
AccountServiceCodeRate
11518801DSRDISC -2
11571901BBRZFET 5
11571901RBNDLOC 0
11571901CDHCTC 0
17412902CDHCTC1 0
14706401ULDBND2 2
14706401RBNDLOC 3
What I would like to end up with is a pivot table of each account, the trigger code and service codes attached to that account, and the rate for each.
I have been able to dynamically get the pivot, but I'm not joining correctly, as its returning every dynamic column, not just the columns of a trigger code. The code below will return the account and trigger code, but also every service code, regardless of which trigger code they belong to, and just show null values.
What I would like to get is just the service codes and the appropriate trigger code for each account.
SELECT @cols = STUFF((SELECT DISTINCT ',' + ServiceCode
FROM TriggerTable
FOR XML PATH(''), TYPE
).value('(./text())[1]', 'VARCHAR(MAX)')
,1,2,'')
[Code] ....
How to join 2 heap tables with out any common fields.
for example tbl1 has
col1
1
2
3
4
5
and tbl1 2 has
col2
a
b
c
I want the output like
col1 col2
1 a
2 b
3 c
4
5
is this possible with out using row_number()?
I am getting error [[Msg 116, Level 16, State 1, Line 7 .Only one expression can be specified in the select list when the subquery is not introduced with EXISTS.]] for the below script.
==============================================
Declare @mSql2 Nvarchar(max)
SET @mSql2= (select * from Tablename)
================================================
I want to create the following scenario. I have a table that stores employees working on projects and their project hours by week, but now I also need a running total per week for each of those projects. For example take a look below:
EmployeeID, Project, Sunday, Monday, Tuesday,....Saturday, ProjectHours, TotalProjectHoursPerWeek(this is the column I am trying to derive), FiscalWeek
101, ProjectABC, 5,5,5,...5, 20, 40,25
102, ProjectXYZ 4,4,4,....4, 20 ,40,25
103,ProjectQWE, 2,2,2,...2, 8, 32,26
104, ProjectPOP, 6,6,6,...6, 24, 32,26
What I have tried so far:
Correlated Subquery:
SELECT EmployeeID,Project, Sunday, Monday,....Saturday, ProjectHours, SELECT(SUM(ProjectHours) FROM dbo.TableABC ap GROUP BY FiscalWeek),
FROM
dbo.TableABC a
I got this to work one time before, but now I am getting the following error:
Subquery returned more than 1 value. This is not permitted when the subquery follows =, !=, <, <= , >, >= or when the subquery is used as an expression.
I can't understand why I get 2 different results on running with a Bracket I get 'NULL' and without a bracket I get the declared variable value which is 'Noname'
Below is Query 1:
Declare @testvar char(20)
Set @testvar = 'noname'
Select @testvar= pub_name
FROM publishers
WHERE pub_id= '999'
Select @testvar
Out put of this query is 'Noname'
BUT when I type the same query in the following manner I get Null-------Please note that the only difference between this query below is I used brackets and Select in the Select@testvar statement
Declare @testvar char(20)
Set @testvar = 'noname'
Select @testvar=(Select pub_name
FROM publishers
WHERE pub_id= '999')
Select @testvar
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)
After trying every way I could come up with I can't get a filter clauseto work with a passed variable ...I have a cursor that pulls a filter string from a table (works OK),then I want to use that filter in a second cursor, but can't get thesyntax ...@bakfilter is equal to "MISV2_db_%.BAK" before I try to open and fetchfrom the second cursor. Here is the cursor declaration:DECLARE curFiles CURSOR FORSELECT FileName, FileDateFROM DataFileWHERE (((Active)=1) AND ((FileName) LIKE '@bak_filter'))ORDER BY FileDate DESCWhat do I need to do to get it to use the string contained in@bak_filter?Thanks in advance, Jim
View 1 Replies View RelatedI am writing a stored procedure and have a query where I create a variable from other table
Declare @Sem varchar (12) Null
@Decision varchar(1) Null
Select emplid,name, Semester
Decision1=(select * from tbldecision where reader=1)
Decision2=(select * from tbldecision where reader=2)
Where Semester=@Sem
And Decision1=@Decision
But I am getting error for Decision1 , Decision2. How can I do that.