select into vs insert/select
I am looking for ways to speed up a procedure, which as a part of an
overnight processing is called about 3000 times.
The procedure begins by inserting about 20 rows into a temp table created
outside of the proc. I thought that this may be better done by a select
into statement because it is minimally logged etc.
I am running the two versions of the statement (insert/select and select
into) 2700 times on a quiet server and it seems that the insert/select is a
bit faster, a second or two.
Any ideas what I'm doing wrong? Is it my assumption about select into being
fas...insert select and select into
I am using temp tables to generate a report. I created most of the temp
tables and then use insert select. I found for one, when I use insert
select, I get a different query plan than if I use select into. The select
into get a much better performance. The problem is I get dead locks on the
statement. Is there anything I can do to change this behavior?
...SELECT from SELECT
I remember seeing an example where you can do a select from a nested
select, but I cannot seem to make it work.
So it would be something like this:
select max( name )
select name from customer
select name from vendor
Was I dreaming I saw that?
In article <4500243f@forums-2-dub>,
> I remember seeing an example where you can do a select from a nested
> select, but I cannot seem to make it work.
No, you weren't. Try (UNTESTED!) adding a...SELECT * vs. SELECT 1
I have always understood that when using the WHERE EXISTS clause, one
codes it as WHERE EXISTS (SELECT * FROM .....). Lately, I've been told
that performance is better if the it's coded as ...(SELECT 1 FROM ...)
(or SELECT '' .. - that is, to select some literal). Everything I've
read says that SELECT * is used with EXISTS because there's no result
set returned - it only evaluates into true or false.
I'm now curious - is there an advantage to writing SELECT 1 instead of
SELECT * with EXISTS? If so, how much of an advantage, & why do all of
the SQL b...Why is the select saying selected after an item is selected?
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use thisddl.options[ddl.selectedIndex].selected = false; //Clear the selection
ddl.options.selected = trueMAKMark as Answer if this reply helps youMVP ASP/ASP.NetASP.Net Hosting : Host DepotMy Sit...country selected vs language selected
looking for suggestions on how to handle the following with 2.0.
in some cases, sites would be required to switch between countries and independantly, switch the language. For instance; a US english site would be presenting items available only in the US, but a user might wish to have a separate control to switch the language to spanish or whatever. Therefore, users may change countries to see what products are available in that country, but may wish to change the language while in the country specific site. Hope that makes sense.
any feedback is appreciated.
See if the following ar...Select into vs Insert
I appriciate if someone calrifies.
As per Sybase manuals(T-Sql), "Select into" is a two step process first
step create the table and insert the data into table.
Whether my assumption is correct or not?
When creating the table Server will have lock on system tables, During the
insertion of data it will not hold the lock on System tables.
Here I would like to know what are other adavantages I can get by using
In my devlopment I would like use more "select into"s than Create & Insert.
Which reduces my logging pretty ...ddl Selected Index vs Selected Value
Obviously I'm missing something...in all my debugging I find that when trying to set the selectedindex to my dropdownlist that all previous logic goes out the window! In standard VB, setting the selectedindex meant referring to it's option value. What I find now is there is a distinct index array collection not based on the listitem value.
To summarize, I have a datagrid with template column that contains a read-only textbox for it's Item Template and a dynamic dropdownlist for it's Edit Item Template. When the edit hyperlink command is clicked, I grab the text value from the textbox a...select * vs select field, which one is faster ?
Suppose we have a table of 50 fields, which command should we use to
take the result faster :
SELECT * FROM Employee
SELECT employee.id, employee.name FROM Employee
Thanks for help.
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The second one. In that case, only data for two columns is retrieved.
- Eric Aling [TeamPS], Cypres Informatisering bv, T...Direct Select Vs select from host variables
Question regarding what is bad regarding a select statement. I am using
a stored procedure for this:
Table contains 15 columns
1. select all 15 columns in a select statement
select column1, column2 ..... from tablename
2. declare @column1 , @column 2 ....
select @column1 = column1, @column2 = column2 ... from table
select @column1, @column2 ....
The reason is because, i need to pass one or more column values to
another stored procedure for some access control validations. If I have
access, then proceed with select.
Which is not good and why?
Thanx i...remote server select passed through/insert ... select not
This statement is passed through to a remote oracle server:
cast(so.fixed_std_time as int) + cast(so.fixed_std_time_hh as int)*60 +
cast(so.fixed_std_time_dd as int)*1440 as fixed_std_time_minutes,
cast(cast(socextgauge.operation_char_val as decimal(14,7))*.0000001 as
decimal(7,7)) as gauge,
cast(socpass.operation_char_val as int) as passnumber,
cast(socalloy.operation_char_val as char(6)) as alloy
from ppsprod.product p
join ppsprod.standard_operation so
join ppsprod.standard_op_ch...Select option selection
I'm created a gridview of websites, in one column, and use the gridview's 'selection' featue in the next column. When I click the 'selection' link I tried to get the website by using:
Dim key As String = grvPrivacy.Rows(e.RowIndex).Cells(1).Text
but it said it was not part of the webcontrol for selection. How do I get cell so that I can read it?
Looks like your grabbing the select option and not the first cell
Dim key As String = grvPrivacy.Rows(e.RowIndex).Cells(0).TextwerD, MCSD VB.Net
There are several ways...SELECT . FROM ( SELECT .. FROM )
In application we generate very effective SQL statements that are
understandable by MS SQL Server and Oracle but give syntax errors on Sybase.
I am talking about SELECT . FROM ( SELECT .. FROM a_table). For example:
select 1 from (select abc_id from abc)
select 1 from (select abc_id from abc union all select abc_id from bcd)
Is there any way to overcome this limitation?
Any help will be greatly appreciated.
On Wed, 15 May 2002 02:09:52 -0700, Leonid Borisov wrote:
>...Select in the select clause
How to use another select clause within a select clause itself.
select col1,col2,(select colx from table b) from table a .
The above statement is throwing syntax error
Anandkumar B CGVAK Software & Exports Ltd. ( 0422 2434491/92
"anand_group" <firstname.lastname@example.org> wrote:
> How to use another select clause within a select clause itself.
> select col1,col2,(select colx from table b) from table a .
> The above statement is throwing syntax error
Ensure that subquery returns only one row. And...