How To SET Multiple Variables From One Table Record?
Apr 18, 2005
It's come up more than once for me, where I need to DECLARE and SET several SQL variables in a Stored Procedure where many of these values come from the same table record - what is the best method for doing this, where I don't have to resort to making a separate query for each value.
Currently I'll do something like this:
DECLARE @var1 intSET @var1 = (SELECT TOP 1 field1 FROM table1 WHERE recordkey = @somekey)DECLARE @var2 nvarchar(20)SET @var2 = (SELECT TOP 1 field2 FROM table1 WHERE recordkey = @somekey)
Of course, I'd rather just have to query "table1" just once to assign my variables.
I have two table and there are releationsheep between them. Topic: topicId, topicName, topicDate Reply: replyId,topicId,replyName,replyDate I want to insert two table at the same time. Topic: 1,example,10/21/2007 Reply:1,1,example, 10/21/2007
Now I want the records having flag2=1 only.. I.e ID=3 has flag2=1 where as ID = 1 and 2 has flag1 and flag3 =1 along with flag2=1. I don't want ID=1 and 2.
I can't make ID unique or primary. I tried with case when statements but it I am somehow missing the basic logic.
Thanks in advance for you help.SQL Server 2000I have a complex join, but a simple example will do the trick so...table1 (placement records, possibly many per case,highest ID beingmost recent)----------placementID(pk) * CaseID(fk) * OrganizationID(fk) * Name * Numbertable2 (Organizations Table, Many Placements can be at 1 organization)----------OrganizationID(pk) * OrgName * OrgTypetable 3(Case Table, each Case can have many placements)----------CaseID(pk) * StaffName * CreationDatenow my query...SELECT t1.placementID,t1.caseID,t2.OrgNameFROM table1 as t1INNER JOIN table2 as t2 on t2.OrganizationID = t1.OrganizationIDWHERE exists (select distinct max(placementID),CaseIDfrom t1 group by caseID)GROUP BY t2.OrgName,t1.PlacementID,t1.CaseIDmy results-------------placementID CaseID OrgName1 1 oneOrg2 1 two org3 1 three org4 2 another org5 3 yet another orgmy desired results------------------PlacementID CaseID OrgName3 1 three org4 2 another org5 3 yet another orgas you can see i get all records, but what i want is to see only thelast placementID for each case so i dont want duplicate caseID but Ido need the orgName, and yes the query works correctly without the orgname but as soon as i add orgName to the select statement I getduplicate CaseID's, How do i eliminate duplicate CaseID's and get onlythe MAX(placementID) for each Case and the OrgNameplease advise, getting desperate.thanks again so much for the help
Hello all,I'm trying to request a number of URLS (one for each user) from my database, then place each of these results into a separate string variables. I believed that SqlDataReader could do this for me, but I am unsure of how to accomplish this, or if I am walking down the wrong road. The current code is below (the section in question is in bold), please ignore the fact that I'm using MySQL as the commands work in the same way. public partial class main : System.Web.UI.Page{ String UserName; String userId; String HiveConnectionString; String Current_Location; ArrayList Location; public String Location1; public String Location2; public String Location3; //Int32 x = 0; private void Page_Load(object sender, EventArgs e) { if (User.Identity.IsAuthenticated) { UserName = Membership.GetUser().ToString(); userId = Membership.GetUser().ProviderUserKey.ToString(); HiveConnectionString = "Database=hive;Data Source=localhost;User Id=hive_admin;Password=West7647"; using (MySql.Data.MySqlClient.MySqlConnection conn = new MySql.Data.MySqlClient.MySqlConnection(HiveConnectionString)) { // Map Updates MySql.Data.MySqlClient.MySqlCommand Locationcmd = new MySql.Data.MySqlClient.MySqlCommand( "SELECT Location FROM tracker WHERE Location = IsOnline = '1'"); Locationcmd.Parameters.Add("?PKID", MySql.Data.MySqlClient.MySqlDbType.VarChar, 255).Value = userId; Locationcmd.Connection = conn; conn.Open(); MySql.Data.MySqlClient.MySqlDataReader LocationReader = Locationcmd.ExecuteReader(); while (LocationReader.Read()) { Location1 = LocationReader.GetString(0); //Location2 = LocationReader.GetString(1); // This does not work.. } LocationReader.Close(); conn.Close(); // IP Display MySql.Data.MySqlClient.MySqlCommand Checkcmd = new MySql.Data.MySqlClient.MySqlCommand( "SELECT UserName FROM tracker WHERE PKID = ?PKID"); Checkcmd.Parameters.Add("?PKID", MySql.Data.MySqlClient.MySqlDbType.VarChar, 255).Value = userId; Checkcmd.Connection = conn; conn.Open(); object UserExists = Checkcmd.ExecuteScalar(); conn.Close(); if(UserExists == null) { MySql.Data.MySqlClient.MySqlCommand Insertcmd = new MySql.Data.MySqlClient.MySqlCommand( "INSERT INTO tracker (PKID, UserName, IpAddress, IsOnline) VALUES (?PKID, ?Username, ?IpAddress, 1)"); Insertcmd.Parameters.Add("?IpAddress", MySql.Data.MySqlClient.MySqlDbType.VarChar, 15).Value = Request.UserHostAddress; Insertcmd.Parameters.Add("?Username", MySql.Data.MySqlClient.MySqlDbType.VarChar, 255).Value = UserName; Insertcmd.Parameters.Add("?PKID", MySql.Data.MySqlClient.MySqlDbType.VarChar, 255).Value = userId; Insertcmd.Connection = conn; conn.Open(); Insertcmd.ExecuteNonQuery(); conn.Close(); } else { MySql.Data.MySqlClient.MySqlCommand Updatecmd = new MySql.Data.MySqlClient.MySqlCommand( "UPDATE tracker SET IpAddress = ?IpAddress, IsOnline = '1' WHERE UserName = ?Username AND PKID = ?PKID"); Updatecmd.Parameters.Add("?IpAddress", MySql.Data.MySqlClient.MySqlDbType.VarChar, 15).Value = Request.UserHostAddress; Updatecmd.Parameters.Add("?Username", MySql.Data.MySqlClient.MySqlDbType.VarChar, 255).Value = UserName; Updatecmd.Parameters.Add("?PKID", MySql.Data.MySqlClient.MySqlDbType.VarChar, 255).Value = userId; Updatecmd.Connection = conn; conn.Open(); Updatecmd.ExecuteNonQuery(); conn.Close(); } } } } Can anyone advise me on what I should be doing (even if its just a "you should be using this command) if this is not correct? In fact any pointers would be nice !Thanks everyone!
I have a folder containing 20-25 zip files, each representing one daily report, and containing 3 text files. I have to store summary information from the daily reports into 2 tables in a SQLserver 2005 database.
Order of Events (I think): Capture the max ZipID (PrimaryKey) from the Log table into a variable. (Execute SQL Task - check) For each zip file in the folder (ForEach Loop Container - check)
Capture the file creation date into a variable (Script Transformation - check) Store file name, date and (maxZipID + 1) to a new record in the Log table Store (maxZipID + 1) back to the variable Extract the Defect file from the zip to the tmp folder (Execute Process Task - check) For each row in the Defect file (Data Flow, Flatfile Source - check)
Create a row number, and assign it and the new maxZipID to the row (Data Flow, Script Transformation - check) Write the row to a new record in the Defect table (Data Flow, OLE DB Destination - check) Delete the Defect file (File System Task - check)
The items in red are the issue. Is it another Data Flow Task? What would I use as the source? Or is a Script Task better suited, using ADO to add the Log record? Or is there another task in the Toolbox that would do the trick, one I haven't had occasion to learn about yet?
I'm sure the info I'm after is already in this forum somewhere, but I'm 4 hours down that road and still haven't hit on the combination of words I need to return results that apply, so any input would be greatly appreciated.
How can we insert multiple records in a OLEDB destination table for each entry from the source table. To be more clear, for every record from source we need to insert some 'n' number of records into the destination table. this 'n' changes depending on the record. how is this achieved.
I've got a package in SSIS 2012 that has an Execute SQL task in the control flow level.
The SQL in question does an Upsert via the SQL merge statement. What I want to do, is return the count of records inserted and records updated (No deletes going on here to worry about). I'm using the output option to output the changed recs to a table variable.
I've tried returning the values as:
Select Count(*) as UpdateCount from @mergeOutput where Action = 'Update' and Select Count(*) as InsertCount from @mergeOutput where Action = 'Insert'
I've tried setting the resultset to both Single rowset and Full rowset, but i'm not seeing anything returned to the package variables I've set for them (intInsertcount and intUpdatecount).
Hi I have a table with a user column and other columns. User column id the primary key.
I want to create a copy of the record where the user="user1" and insert that copy in the same table in a new created record. But I want the new record to have a value of "user2" in the user column instead of "user1" since it's a primary key
Stored procedure retrieves a single row from a single table... Based on the specific values in 4 different columns, different branch actions are taken using 4 nested IF statements.
The question is, what is more efficient: storing column values in 4 variables and then evaluting each of them, or executing the same query 4 times?
Scenario A:
DECLARE @var1 char(20), @var2 char(20), @var3 char(20), @var4 char(20) SELECT @var1 = col1, @var2 = col2, @var3 = col3, @var4 = col4 FROM theTable WHERE rid = 12345 IF @var1 = 1 ... ELSE IF @var2 = 2 ... ELSE IF @var3 = 3 ... etc. ---------------
Scenario B:
IF (SELECT col1 FROM theTable WHERE rid = 12345) = 1 ... ELSE IF (SELECT col2 FROM theTable WHERE rid = 12345) = 2 ... ELSE IF (SELECT col3 FROM theTable WHERE rid = 12345) = 3 ... etc. --------
Is that possible to restrict inserting the record if record already exist in the table.
Scenario: query should be
We are inserting a bulk information of data, it should not insert the row if it already exist in the table. excluding that it should insert the other rows.
Hi All,I have a table in SQL Server 2000 that contains several million memberids. Some of these member ids are duplicated in the table, and eachrecord is tagged with a 1 or a 2 in [recsrc] to indicate where theycame from.I want to remove all member ids records from the table that have arecsrc of 1 where the same member id also exists in the table with arecsrc of 2.So, if the member id has a recsrc of 1, and no other record exists inthe table with the same member id and a recsrc of 2, I want it leftuntouched.So, in a theortetical dataset of member id and recsrc:0001, 10002, 20001, 20003, 10004, 2I am looking to only delete the first record, because it has a recsrcof 1 and there is another record in the table with the same member idand a recsrc of 2.I'd very much appreciate it if someone could help me achieve this!Much warmth,Murray
I was wondered what the most efficient way to do the following in MS SQL (2000, 2005, and above): Psudo Code: DECLARE @var1, @var2, @var3 VARCHAR(100) SET @var1, @var2, @var3 = (SELECT var1, var2, var3 FROM Table WHERE [ID] = @someID) <-- Returns only one row Right now I'm making a call for every variable. I should play around with temp tables but seems like allot of overhead code just to get 3 values. I'm thinking there's a simple way to do this. Thanks for any ideas
Hello, Is there a way to assign multiple variables to one select statement as in the following example? DECLARE @FirstName VARCHAR(100) DECLARE @MiddleName VARCHAR(100) DECLARE @LastName VARCHAR(100) @FirstName, @MiddleName, @LastName = SELECT FirstName, MiddleName, LastName FROM USERS WHERE username='UniqueUserName'
I don't like having to use one select statement for each variable I need to pull from a query. This is in reference to a stored procedure.
I'm having trouble with a script component in which I'm trying to use two ReadOnlyVariables. If I use only one of the two variables, everything works without issue. If I use both of the variables (as part of a comma-delimited list) I get the following:
The variable cannot be found. This occurs when an attempt is made to retrieve a variable from the Variables collection on a container during execution of the package, and the variable is not there. The variable name may have changed or the variable is not being created.
I don't believe the variables themselves are the problem. Both are scoped to the package level and I can use either of them if I have it as the only variable. Seems bug-like, but thought I'd get some ideas before pursuing that route.
I'd like to be able to call different packages from a control flow. These packages will have different requirements for parameters therefore I'd like to create them dynamically.
Is this possible? Can I do it using a script task?
I was wondering if it is possible to assign values to multiple variables from within the same execute sql task, ie I want to use only one execute sql task and have multiple T-SQL statements within it and then assign the results of these sql statemenst as values to multiple variable.
Typically I would declare variables var1 , var2 and var3 , then can I just add one execute sql task and have mutiple sql statements within it? something like this
Hi, figured out where I was going wrong in my post just prior, but isthere ANY way I can assign several variables to then use them in anUpdate statement, for example (this does not work):ALTER PROCEDURE dbo.UpdateXmlWF(@varWO varchar(50))ASDECLARE @varCust VARCHAR(50)SELECT @varCust = (SELECT Customer FROM tblWorkOrdersWHERE WorkOrder=@varWO)DECLARE @varAssy VARCHAR(50)SELECT @varAssy=(SELECT Assy FROM tblWorkOrdersWHERE WorkOrder=@varWO)UPDATE statement here using declared variables...I can set one @variable but not multiple. Any clues? kinda new tothis.Thanks,Kathy
I have a MSSQL2000 table called partspec.dbo.locationIn this table are 2 smallint columns: Tester (numbered 1-40) and Line (numbered with various integers)I am trying to create a stored procedure to read the tester number like so:Select Tester from partspec.dbo.location where Line = 2which will return up to 5 tester number results, lets say 11, 12, 24, 29 ,34My question is how do I store these tester numbers into 5 variables so that I may use them later in the sp ? So it would go something like this:CREATE PROCEDURE Table_Line (@Tester1 integer,@Tester2 integer,@Tester3 integer,@Tester4 integer,@Tester5 integer)ASSELECT Tester FROM partspec.dbo.location where Line = 2Now this is where I'm confused on how to get 1 value into 1 variable and so on for all 5 values returned. This is what I would like to happen: @Tester1 = 11@Tester2 = 12@Tester3 = 24@Tester4 = 29@Tester5 = 34GOThank you for any and all assistance.
SOURCE TABLE ID SEQ COM VARCHAR(10) 1 1 I 1 2 am 1 3 doctor 2 1 I 2 2 am nurse DESTINATION TABLE --Each comm field is varchar(20) ID_COM1___COM2______COM3 1__I______am_________doctor 2__I______am nurse____NULL
How do I use table names stored in variables in stored procedures?
Code Snippetif (select count(*) from @tablename) = 0 or (select count(*) from @tablename) = 1000000
I receive the error 'must declare table variable '@tablename''
I've looked into table variables and they are not what I would require to accomplish what is needed. After browsing through the forums I believe I need to use dynamic sql particuarly involving sp_executesql. However, I am pretty new at sql and do not really understand how to use this and receive an output parameter from it(msdn kind of confuses me too). I am tryin got receive an integer count of the records from a certain table which can change to anything depending on what the user requires.
Code Snippet
if exists(Select * from sysobjects where name = @temptablename) drop table @temptablename
It does not like the 'drop table @temptablename' part here. This probably wouldn't be an issue if I could get temporary tables to work, however when I use temporary tables i get invalid object '#temptable'.
Heres what the stored procedure does. I duplicate a table that is going to be modified by using 'select into temptable' I add the records required using 'Insert into temptable(Columns) Select(Columns)f rom TableA' then I truncate the original table that is being modified and insert the temporary table into the original.
Heres the actual SQL query that produces the temporary table error.
Code Snippet Select * into #temptableabcd from TableA
Insert into #temptableabcd(ColumnA, ColumnB,Field_01, Field_02) SELECT ColumnA, ColumnB, Sum(ABC_01) as 'Field_01', Sum(ABC_02) as 'Field_02', FROM TableB where ColumnB = 003860 Group By ColumnA, ColumnB
TRUNCATE TABLE TableA
Insert into TableA(ColumnA, ColumnB,Field_01, Field_02) Select ColumnA, ColumnB, Sum(Field_01) as 'Field_01', Sum('Field_02) as 'Field_02', From #temptableabcd Group by ColumnA, ColumnB
The above coding produces
Msg 208, Level 16, State 0, Line 1
Invalid object name '#temptableabcd'.
Why does this seem to work when I use an actual table? With an actual table the SQL runs smoothly, however that creates the table names as a variable problem from above. Is there certain limitation with temporary tables in stored procedures? How would I get the temporary table to work in this case if possible?
I am trying to update one table when records are inserted in another table.
I have added the following trigger to the table “ProdTr” and every time a record is added I want to update the field “Qty3” in the table “ActInf” with a value from the inserted record.
My problem appears to be that I am unable to fill the variables with values, and I cannot understand why it isn’t working, my code is:
ALTER trigger [dbo].[antall_liter] on [dbo].[ProdTr] for insert as begin declare @liter as decimal(28,6)
I'm inserting from TempAccrual to VacationAccrual . It works nicely, however if I run this script again it will insert the same values again in VacationAccrual. How do I block that? IF there is a small change in one of the column in TempAccrual then allow insert. Here is my query
INSERT INTO vacationaccrual (empno, accrued_vacation, accrued_sick_effective_date, accrued_sick, import_date)
I am trying to do an update to a database with the code below, the code will work in generating a single record (if i exclude the IF statement) but i need it to create multiple new records based on the IF statement (or something similar) i have in the code. It needs to create updates for every record that has a parentguid that matches the one specified in the code. the idea is, the hierachy structure in the tables are:
i want it so that when i input a new part it updates to all the locations. The locations all have the same parentguid (the one specified in the code) With regards to the stored procedure it executes, this stored procedure creates the entry. I don't really want to change the stored procedure because other functions reference and use it.
Hi there, I've a complex stored procedure, which I'm trying to get a list of one or more users based the list of records that are being display. If I mentioned the overall store procedure here it'll turn you off, so I'll put the questions in bitesize chunks. Example would be if Bob and Luke work for Acrm Corp and John for Maxwellarms Ltd, and there was an intimediate table which linked both. With my stored procedure I want to display both names in the same row as Acrm Corp. Is there a way to do this? User tableUserid Username 1 Bob2 Luke3 John Store procedure resultCompanyname Username Acrm Corp NullMaxwellarm Ltd Null Regards,
I have a table with a large number of records that I need to delete, before attempt to perform the delete I also archived the records to another table.
So I need to delete all of these selected records stored in the archive table from the main table. I can now reference all the records that qualify for the delete in the main table by performing a join on the archive table like so:
select * from my_main_table a join my_archive_table b on a.distinct_id=b.distinct_id and a.surrogate_key=b.surrogate_key and a.identifier=b.indentifier
So all the records check out to be the ones I'd like to perform a delete on but I just can't figure out how to perform a delete of the records with little or no change to the existing query.
Obviously something like this won't work:
delete from my_main_table a join my_archive_table b on a.distinct_id=b.distinct_id and a.surrogate_key=b.surrogate_key and a.identifier=b.indentifier
Though it would be nice if it did.:D
So my question is how would I use the existing query with some modification to delete only the records that this query returns. I've tried selection of records in the main table based on the existing records in the archive table but it can return a higher number of records than what I know is expected. I actually need the join specified to be in place to do it.
