I have some stored procedures that do updates using table aliases, like this:
UPDATE TableAlias
SET ColVal = 1
FROM RealTable AS TableAlias
WHERE TableAlias.ColVal <> 1
This allows me to include joins and stuff in the update (not shown) and make it all more readable for me.
It all works fine, and the SSMS parser says it's fine. But I also have another script which looks at sys.sql_expression_dependencies and sys.objects to find stored procedures with invalid object references (see below), and it's understandably saying that all of the above type stored procedures have invalid references.
SELECT
OBJECT_NAME(DEP.referencing_id) AS referencing_name,
DEP.referenced_entity_name
FROM sys.sql_expression_dependencies AS DEP
WHERE
-- Only validate local references:
(
DEP.referenced_database_name = DB_NAME()
[Code] ....
So I have a couple questions.
1. Is the UPDATE syntax I'm using kosher?
2. Can you recommend any updates to my stored procedure validation script that will better accommodate table aliases like mine?
Hi all,I am doing the change from having worked in Oracle for a long time toMS SQL server and am frustrated with a couple of simple SQL stmt's. Orat least they have always been easy.The SQL is pretty straightforward. I am updating a field with a Maxeffective dated row criteria. (PepopleSoft app)update PS_JOB as A set BAS_GROUP_ID = ' 'where EMPL_STATUS in ('D', 'L', 'R', 'S', 'T')and EFFDT = (select max(EFFDT) from PS_JOB where EMPLID = A.EMPLID)This stmt is not working. I am getting an error on the keyword 'as'. Ihave tried:update PS_JOB A set...update PS_JOB from PS_JOB A set...Same result, error on 'A' or error on 'from'.I also tried to add the table alias to the sub query, whichtechnically worked, but with wrong data result.So my question comes down to: How do I use a table alias in an updatestatement in MS SQL server?I worked around this by creating a temp table. But that does notfulfill my curiosity, nor is it an ideal solution.Thanks a lot,-OK
I had two servers, in which SQL Servers are installed. I created a alias for server
Server 1 : test1.sqlcloud.com (Alias name with port no other than 1433) Server 2 : test2.sqlcloud.com (Alias name with port no other than 1433)
I can connect to the servers using the port. for ex server1 to server2 and viceversa using "test2.sqlcloud.com,port". But I could not connect to the server by only specifying the alias name ("test2.sqlcloud.com"). When I am connecting I am getting the following error.
"TITLE: Connect to Server ------------------------------
Cannot connect to test2.sqlcloud.com.
------------------------------
ADDITIONAL INFORMATION:
Connection Timeout Expired. The timeout period elapsed while attempting to consume the pre-login handshake acknowledgement. This could be because the pre-login handshake failed or the server was unable to respond back in time. The duration spent while attempting to connect to this server was - [Pre-Login] initialization=21020; handshake=0; (Microsoft SQL Server, Error: -2)
I am trying to use a stored procedure to update a column in a sql table using the value from a variable table I getting errors because my syntax is not correct. I think table aliases are not allowed in UPDATE statements.
This is my statement:
UPDATE [dbo].[sessions_teams] stc SET stc.[Talks] = fmt.found_talks_type FROM @Find_Missing_Talks fmt WHERE stc.sessionid IN (SELECT sessionid FROM @Find_Missing_Talks) AND stc.coupleid IN (SELECT coupleid FROM @Find_Missing_Talks)
I know how to create an alias for a SQL server instance, so instead of MyServerMyInstanceName, I can type MyInstanceName into my SSMS connection box. But SSAS does not allow me to connect with the alias.
I've looked all over and found plenty of documentation that SQL 2005 and 2008 doesn't allow the use of instance aliases for SSAS. I've even found notes from Microsoft saying "we'll fix this in a future edition." I have not found any indications or notes as to whether or not this has been fixed.
Can aliases be created for 2012 SSAS? Or is this still not available?
To avoid locking/blocking, or in transaction scope, we are trying make a common practice of writing coide for update commands in our all SPs based on primary key columns in where clause. I have a following scenario...
UPDATE [dbo].[TL_CST_Locker_Issuance] SET [isActive] = 0 WHERE LockerIssuanceId IN (SELECT LockerIssuanceId
[Code] ...
What is the better approach and should be followed to avoid locks and gain performance or best approach.
As a database developer, I have so many databases that I "own" scattered across various servers that it''s getting difficult to remember where all of my databases reside. It doesn't work that the DBAs have taken to some very hard to remember server naming conventions.
I was going to create aliases via the configuration manager, but it turns out the DBAs overwrite my entries each night with THEIR aliases and they won't add any for my use.
So I decided to simply add some records to my host file so that instead of having to connect to "SERVER-AD_DADF-DAFDASS" I can just use "CustomerA".
This solution seems to work until I tried to access a linked server. If I connect to the main server via it's actual name, I can hit the remote/linked server with no issue. However, if I connect to the main server using it's alias, connection to the remote/linked server fails with: Login failed for user 'NT AUTHORITYANONYMOUS LOGON'.
The linked server is set up to use current security context and I'm not logging into the alias any differently that I do when using the actual server name.
To see where is the problem I am trying to count rows in the database.First I create a table A with 2 columns namely tablename, rowbefore and rowafter and I insert records in it as below.
INSERT INTO A SELECT TableName = o.name, '', Rows = max(i.rows) FROM sysobjects o INNER JOIN sysindexes i ON o.id = i.id WHERE xtype = 'u' AND OBJECTPROPERTY(o.id,N'IsUserTable') = 1 GROUP BY o.name ORDER BY o.name Then I update rowbefore with rowafter as below. UPDATE A SET rowbefore = rowafter
Now I launch my application with update records in the database.Then I am trying to update rowafter with new records as below.
UPDATE A SET rowafter = (SELECT max(sysindexes.rows) FROM sysobjects INNER JOIN sysindexes ON sysobjects.id = sysindexes.id WHERE xtype = 'u' AND OBJECTPROPERTY(sysobjects.id,N'IsUserTable') = 1 AND A.tablename = sysobjects.name)
Does this update really update my column rowafter or not?
I have a bit of trouble getting values into one alias field, my code is below. I am trying to get values into the alias extension, Agent_ID is sometimes null, and so is agent_id2, however sometimes they both have values in them, and then only one of the values is every returned. When in the example below only Agent_ID (11111) is ever returned by I want both of them returned.
Agent_ID Agent_ID2 11111 22222 <code> SELECT DISTINCT CASE WHEN [AGENT_ID] is not null then AGENT_ID when agent_id2 is not null then agent_id2 end as extension FROM [AA_Helper].[dbo].[tblEmpData] </code>
I am writing a query to update table variable. It is throwing me some error.
I have a table variable declared and inserted the data with three columns. I want to update col1 of that table variable when the second column of that table variable= one column from a physical table
update @MYtabvar set @Mytabvar.LatestDate=B.LatestDate from TableB B where @Mytabvar.id=B.ID
I have a table with 8 columns, I need to update data in multiple columns on this table, this table contains 1 million records, having single update was taking time so I broke the single update into multiple update statements and running multiple update statements in parallel, Each update statement updates different column.
This approach is working fine but I am getting the deadlock error.
Transaction (Process ID 65) was deadlocked on lock | communication buffer resources with another process and has been chosen as the deadlock victim. Rerun the transaction.
I am trying to setup a client alias to connect to a named instance on another server.
TITLE: Connect to Server ------------------------------ Cannot connect to fred. ------------------------------
ADDITIONAL INFORMATION:
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 53)
[URL]
The network path was not found
------------------------------ BUTTONS: OK ------------------------------
I have set up the alias on the server and as expected it works. On the client side I have used the SQL Server Client Network Utility to configure the client side alias but no luck
I am using TCP/IP with a specific port ..
By the way the SQL is SQL Server 2012 Ent and the O/S is Windows 2012 R2 minshell
In a stored procedure I dynamically create a temp table by selecting the name of Applications from a regular table. Then I add a date column and add the last 12 months. See attachment.
So far so good. Now I want to update the data in columns by querying another regular table. Normally it would be something like:
UPDATE ##TempTable SET [columName] = (SELECT SUM(columName) FROM RegularTable WHERE FORMAT(RegularTable.Date,'MM/yyyy') = FORMAT(##TempMonths.x,'MM/yyyy'))
However, since I don't know what the name of the columns are at any given time, I need to do this dynamically.
how can I get the column names of a Temp table dynamically while doing an Update?
Our system runs a SQL Server 2012 DB, it has a table (table_a) which has over 10M records. Our system have to receive data file from previous system daily which contains approximate 3M updated or new records for table_a. My job is to update table_a with the new data.
The initial solution is:
1 Create a table (table_b) which structur is as the same as table_a
2 Use BCP to import updated records into table_b
3 Remove outdated data in table_a: delete from table_a inner join table_b on table_a.key_fileds = table_b.key_fields
4 Append updated or new data into table_a: insert into table_a select * from table_b
As the test result, this solution is very inefficient. Step 3 costs several hours, e.g. How can I improve it?
I have a stored proc that contains an update which utilizes a case statement to populate values in a particular column in a table, based on values found in other columns within the same table. The existing update looks like this (object names and values have been changed to protect the innocent):
UPDATE dbo.target_table set target_column = case when source_column_1= 'ABC'then 'XYZ' when source_column_2= '123'then 'PDQ'
[Code] ....
The powers that be would like to replace this case statement with some sort of table-driven structure, so that the mapping rules defined above can be maintained in the database by the business owner, rather than having it embedded in code and thus requiring developer intervention to perform changes/additions to the rules.
The rules defined in the case statement are in a pre-defined sequence which reflects the order of precedence in which the rules are to be applied (in other words, if a matching value in source_column_1 is found, this trumps a conflicting matching value in source_column_2, etc). A case statement handles this nicely, of course, because the case statement will stop when it finds the first "hit" amongst the WHEN clauses, testing each in the order in which they are coded in the proc logic.
What I'm struggling with is how to replicate this using a lookup table of some sort and joins from the target table to the lookup to replace the above case statement. I'm thinking that I would need a lookup table that has column name/value pairings, with a sequence number on each row that designates the row's placement in the precedence hierarchy. I'd then join to the lookup table somehow based on column names and values and return the match with the lowest sequence number, or something to that effect.
The objective is to identify orders where an order fee has been applied incorrectly. I have multiple orders per customer, my table contains an orderID and a customerID. Currently if the customer places additional orders before the previous orders have been closed/cancelled, then additional fees are being applied.
Let's say I'm comparing order #1 to order #2. I need to identify these rows where the following is true:-
The CustID is the same.
Order #2 has a more recent order date.
Order #2 has a FeeDate Before the CancelledDate of Order #1 (or Order #1 has no cancellation date).
So in the table the orderID:2835692 of CustID: 24643 has a valid order fee. But all the subsequently placed orders have fees which were applied before the first order was cancelled and so I want to update the FeeInvalid column with a 'Y'. The first fee will always be valid.
I think I understand why the code I am trying doesn't achieve the result I want but I can't figure out how to write it correctly. Below is one example of code I've tried and also code to create the table and insert some test data.
update t1 SET FeeInvalid = 'Y' FROM MockData t1 Join MockData t2 on t1.CustID = t2.CustID WHERE t1.CustID = t2.CustID AND t2.OrderDate > t1.OrderDate AND t2.FeeDate > t1.CancelledDate CREATE TABLE [dbo].[MockData]( [OrderID] [float] NULL,
I am using MsSql2005 and wondering how to create aliases inside update statements. I need this, for a table variable inside a procedure.
UPDATE @TempTable SET Field1 = ( SELECT RealTable.Field2 FROM RealTable WHERE RealTable.Field1 = @TempTable.Field1) This statement doesn't work because I need to use an alias for @TempTable.
I want to compare two columns in the same table called start date and end date for one clientId.if clientId is having continuous refenceid and sartdate and enddate of reference that I don't need any caseopendate but if clientID has new reference id and it's start date is not continuous to its previous reference id then I need to set that start date as caseopendate.
I have a temporary table #Temp with, among others, a column CountryCode and a column Lastname.I would like to change the ü that appears in some names to u (u umlaut to a plain u), but only for those that have the nationality 'Ned'
My code so far:
Update #Temp set LastName = replace(Lastname, 'ü', 'ue') WHERE CountryCode = 'Ned'
This code deletes all entries in the column Lastname
I think it must be easy, but I keep staring at the code.
Is it possible to allow a user to insert and update data in a table but prevent them from performing deletes against that same table? For auditing purposes I need to prevent the end users from being able to delete data.
We will be moving 2 different databases (SS2005 & SS2008) to a new SS2014 SQL Server. Currently our codes looks something like Server1DBInstance1... & Server2DBInstance2... Is it possible to move the objects from these 2 instances to Server3DBInstance3 and then use an alias to reference the objects? Or does Server3 need to have DBInstance1 & DBIstance2? Basically, is the alias just for the database or for the instance too? Can I create an alias "Server1DBInstance1' on Server3DBInstance3 and assign objects to that alias?
I have created a table(T1) from select query result, that Select query is parameterised. Now I need to update the select query table(T1) based on the result every time.
Below is my Query:
ALTER PROCEDURE [dbo].[RPT_Cost_copy] SELECT MEII.*, SIMM.U_SP2DC, UPPER(SIMM.U_C3C2) AS GRP3,sb.cost, PREV.Z1, PREV.Z3, SB.Z2, SB.Z4,SIMM.U_C3DC1 AS FAM INTO T1 FROM (SELECT a.meu, a.mep2, SUM(a.mest) as excst FROM mei as A WHERE a.myar=@yr and a.mprd=@mth AND LTRIM(A.MCU) <> '' AND LTRIM(A.MRP2) <> ''
I run the following statement and it will not update beyond 7 million plus rows and I have about 38 million to complete. I keep checking updated row counts and after 1/2 day it's still the same so I know something is wrong because it was rolling through no problem when I initiated it. I need to complete ASAP so it's adding to my frustration. The 'Acct_Num_CH' field is an encrypted field (fyi).
SET rowcount 10000 UPDATE [dbo].[CC_Info_T] SET [Acct_Num_CH] = 'ayIWt6C8sgimC6t61EJ9d8BB3+bfIZ8v' WHERE [Acct_Num_CH] IS NOT NULL WHILE @@ROWCOUNT > 0 BEGIN SET rowcount 10000 UPDATE [dbo].[CC_Info_T] SET [Acct_Num_CH] = 'ayIWt6C8sgimC6t61EJ9d8BB3+bfIZ8v' WHERE [Acct_Num_CH] IS NOT NULL END SET rowcount 0
I have query related to using of Alias names for the Tables in SQL query, will the performance of the query affected if we use Alias name for tables in joins. considering the fact that there was no need to use alias name in those joins.
Hi, I have a problem which i need to get the NewDate which the NewDate is Generated thru Computation of DateDiff Here's my Statement
SELECT DISTINCT RBUCode, DCO, Prov, District, DATEDIFF(mi, ReportedDate + ' ' + ReportedTime, CompletedDate + ' ' + CompletedTime) / 60 AS NewDate FROM PostedFaultTable WHERE (DCO = 'La Union')
I need to get the Less than 5 Hrs of the NewDate
I tried This but it's not working RBUCode, DCO, Prov, District, DATEDIFF(mi, ReportedDate + ' ' + ReportedTime, CompletedDate + ' ' + CompletedTime) / 60 AS NewDate FROM PostedFaultTable WHERE (DCO = 'La Union') and NewDate <= 5
Is table alias using in a query only for Readablity? Is there any difference in performence between a query with table alias and a query without table alias?
