Query Analyser Does Not Check For Object Existence
Nov 27, 2000
we tried out the following code in query analyser -
create procedure TrialProc
as
select * from sakjdhf
when we executed this piece of TSQL in query analyser, we expected it to give an error or warning that no object by the name of sakjdhf exists ( as actually there is no such table or view in the database ). however to our surprise we got "command completed successfully " !!
does this mean the SQL server does not check for necessary objects when creating a stored procedure ? or is there some setting that we missed out whihch is causing SQL server to overlook the error in the code ?
I have several default constraints defined on a table. When I use theObject Browser and expand the constraints for this table andright-click and then select "Script Object to New Window As Create", acreate constraint statement for a different default constraint isdisplayed than the one I just right-clicked on. For example, I clickon constraint "DF_C" and it shows me "DF_B".The last time I encountered this, the solution was to dump contents ofthe table into another, drop, recreate it, and restore the contents.That's not a good option this time.Is there another way to fised this or at least navigate the catalog tofind out what is "off" about this?Thanks
I have a webpage where users can connect with other users by sending them a request. Sending the request just puts a row in a connect table that contains the users id, the targetusers id, a requesteddate, an accepted date and a disconnectdate (for the original requester to end the connection and a reject bit the the target can reject the request. Hoever I need to check to assure that the connect does nt already exist either as pending (requestdate is not null and accept date is null) or both dates are not null (connection already complete.).
ALTER PROCEDURE [dbo].[requestConnect] -- Add the parameters for the stored procedure here @requestor int, @requested int AS BEGIN -- SET NOCOUNT ON added to prevent extra result sets from interfering with SELECT statements.
I wanted to know how do I know or check that whether a column exists in a table. What function or method should I use to find out that a column has already exists in a table.
When I run a T-SQL script which i have written does not work. Here is how I have written:
IF Object_ID('ColumnA') IS NOT NULL ALTER TABLE [dbo].[Table1] DROP COLUMN [ColumnA] GO
Apologies if this has been answered before, but the "Search" function doesn't seem to be working on these forums the last couple of days.
I'd just like to check if a table already exists before dropping it so that I can avoid an error if it doesn't exist. Doing a web search, I've tried along the lines of "If (object_id(sensor_stream) is not null) drop table sensor_stream" and "If exists (select * from sensor_stream) drop table sensor_stream"
In both of these cases I get the error: "There was an error parsing the query. [ Token line number = 1,Token line offset = 1,Token in error = if ]"
Sooooo... what is the standard way to check for existence of a table before dropping it? Someone help? This seems like it should be simple, but I can't figure it out.
Check the field existence of a database table, if exist get the type, size, decimal ..etc attributes I need SP SP ( @Tablename varchar(30), @Fieldname varchar(30), @existance char(1) OUTPUT, @field_type varchar(30) OUTPUT, @field_size int OUTPUT, @field_decimal int OUTPUT ) as /* Below check the existance of a @Fieldname in given @Tablename */ /* And set the OUTPUT variables */
This function, F_TEMP_TABLE_EXISTS, checks for the existence of a temp table (## name or # name), and returns a 1 if it exists, and returns a 0 if it doesn't exist.
The script creates the function and tests it. The expected test results are also included.
This was tested with SQL 2000 only.
if objectproperty(object_id('dbo.F_TEMP_TABLE_EXISTS'),'IsScalarFunction') = 1 begin drop function dbo.F_TEMP_TABLE_EXISTS end go create function dbo.F_TEMP_TABLE_EXISTS ( @temp_table_name sysname ) returns int as /* Function: F_TEMP_TABLE_EXISTS
Checks for the existence of a temp table (## name or # name), and returns a 1 if it exists, and returns a 0 if it doesn't exist.
*/ begin
if exists ( select * from tempdb.dbo.sysobjects o where o.xtype in ('U')and o.id = object_id( N'tempdb..'+@temp_table_name ) ) begin return 1 end
return 0
end go print 'Create temp tables for testing' create table #temp (x int) go create table ##temp2 (x int) go print 'Test if temp tables exist'
select [Table Exists] = dbo.F_TEMP_TABLE_EXISTS ( NM ), [Table Name] = NM from ( select nm = '#temp' union all select nm = '##temp2' union all select nm = '##temp' union all select nm = '#temp2' ) a
print 'Check if table #temp exists'
if dbo.F_TEMP_TABLE_EXISTS ( '#temp' ) = 1 print '#temp exists' else print '#temp does not exist'
print 'Check if table ##temp4 exists' if dbo.F_TEMP_TABLE_EXISTS ( '##temp4' ) = 1 print '##temp4 exists' else print '##temp4 does not exist' go
-- Drop temp tables used for testing, -- after using function F_TEMP_TABLE_EXISTS -- to check if they exist.
if dbo.F_TEMP_TABLE_EXISTS ( '#temp' ) = 1 begin print 'drop table #temp' drop table #temp end
if dbo.F_TEMP_TABLE_EXISTS ( '##temp2' ) = 1 begin print 'drop table ##temp2' drop table ##temp2 end
Test Results:
Create temp tables for testing Test if temp tables exist Table Exists Table Name ------------ ---------- 1 #temp 1 ##temp2 0 ##temp 0 #temp2
(4 row(s) affected)
Check if table #temp exists #temp exists Check if table ##temp4 exists ##temp4 does not exist drop table #temp drop table ##temp2
I'm trying to figure out the best way to write a script to deploy environment variables to different servers. To create the variable I'm currently using catalog. create_environment_variable. I want to wrap that in an if not exist statement.I had thought about just blowing away all the variables and recreating them but I thought that wouldn't go over well in prod. I wasn't sure if by deleting the variable, references to the variable would be lost.
I have a data flow task inside a foreach loop container which will take multiple excel files and load into a sql table. Once all the excel files are loaded into the table, then at the end one of the column gets updated using execute sql task. Now I am trying to check for a file existence, if the file is not present in the folder then the data flow task should not be executed. Any help is greatly appreciated, I am thinking of using file system task for this, but not exactly sure. Thanks in advance.
-- Get the new Customer Identifier, return as OUTPUT param SELECT @NoteID = @@IDENTITY
-- Insert new notes for all the users that the note pertains to, in this case this will be by the assigned -- users. IF @FK_UserIDList IS NOT NULL EXECUTE spInsertNotesByAssignedUsers @NoteID, @FK_UserIDList
-- Insert New Address record -- Retrieve Address reference into @AddressId -- EXEC spInsertForUserNote -- @FK_UserID, --@NoteID, -- @BeenRead -- @Fax, -- @PKId, -- @AddressId OUTPUT
COMMIT TRANSACTION
-------------------------------------------------- GO
SELECT dnn_Roles.RoleName, xyzUser.FirstName, xyzUser.LastName, xyzUser.Email, xyzRewardPoint.Points, xyzRewardPoint.RewardID FROM xyzRewardPoint INNER JOIN xyzUser ON xyzRewardPoint.UserID = xyzUser.UserId INNER JOIN dnn_UserRoles INNER JOIN dnn_Roles ON dnn_UserRoles.RoleID = dnn_Roles.RoleID ON xyzUser.ProviderId = dnn_UserRoles.UserID WHERE (dnn_UserRoles.RoleID = 3) OR (dnn_UserRoles.RoleID = 4) OR (dnn_UserRoles.RoleID = 6) ORDER BY dnn_UserRoles.RoleID
What I need is to extend this query to detect any users who exist in dnn_UserRoles.RoleID 3, 4 or 6 but do not have a RewardID value of '43' in the xyzRewardPoint table.
This what i did , since i need to maintain five sql servers ,i thought i will build a repository so on my desk top (running sql server ) i created a table name master_dbscript with the following fields
server_name varchar(20), dbname varchar(20) db_create_scripts text
using enterprise manager-- all tasks --generate sql scripts , (cut & paste to the insert statement in query analyser, the following is the insert statement
insert into master_dbscript values ('isd11t','test','ALTER TABLE [dbo].[child] DROP CONSTRAINT FK_child_parent GO /****** Object: Trigger dbo.test_patcase Script Date: 25/08/2000 12:10:09 ******/ if exists (select * from sysobjects where id = object_id(N'[dbo].[test_patcase]') and OBJECTPROPERTY(id, N'IsTrigger') = 1)drop trigger [dbo].[test_patcase] GO ')
oops it created all the objects in the database where i tried to run the insert statement. god saved me , i tried this with the test database.
when i tried the same with bcp it worked fine and i was able to see the record in my table (one record) ,note you cannot use dts because it will support maximum 8000 chars only .
I am executing the following query in the query analyser.
"select * from alien119700 order by alienid"
In the message pane it shows
SQL Server Execution Times: CPU time = 0 ms, elapsed time = 0 ms. SQL Server parse and compile time: CPU time = 0 ms, elapsed time = 4 ms. SQL Server parse and compile time: CPU time = 0 ms, elapsed time = 0 ms.
(43 row(s) affected)
SQL Server Execution Times: CPU time = 0 ms, elapsed time = 454 ms. SQL Server parse and compile time: CPU time = 0 ms, elapsed time = 0 ms.
We use SQL 2K(service pack 1).Our query analyser will freeze often.So we loose all query production work.Does anyone know if Version 2 has a fix?Please help.
I noticed that query analyser is much more quicker than EManager when I access my database from my hosting provider... is there any way to see the properties of the table X for example as one can do with EM...
I would be grateful if you could provide me with any query sample conserning this issue...
In my M/c the query analyser (SQL 2000) is not working when ever I try to run it by Using Enterprise manager / Explorer / Start menu - Program / Isqlw.exe.
When I Tried the task manager it shows the process isqlw is working. But I can't see any window coming up ..
Please help me otherwise I will go mad....using other tools to query . 50 % time i use this tool in work. U guys know how important it is .. Thank u
I am studying SQL Server by myself (I am a Sybase DBA) and I have a little problem with the Query Analyser.
I actually have 2 server in my PC (XP) and I can see them via SQL Server Enterprise Manager, I also can open Query Analyser for these two server via Enterprise Manager.
When I try to launch SQL Query Analyser from the start menu, I can't see any of my two server and can't chose a connection.
Do I need to write some parameter somewhere?
It's not a big problem as I can work via Enterprise Manager but I just want to know.
Is there antway I can get the Query Analyser to prompt me with a message saying '234 records will be updated' and then give me the option to continue or not.
I want to run an update query but want to see how many records it will update first.
HiI'm expecting the answer no here but its worth asking.If I wanted to test an arbitary program could I somehowsay in query analyser, start a global transaction on thisdatabase, run my tests, then at the end roll it back from withquery analyser?I know I can use backup and restore but this would beeasier, still, again, I don't think you can do this.TaF
ISTR QA running in 7.0 would return print statements and messages as thequery ran (well, after a "GO" statement anyway). In 2000 it doesn't returnany messages until after the entire query batch has completed. In wanting tokeep an eye on progress on long batches, how can I make 2000 work more like7.0 in this respect?
