Update query in mssql 2005


















For example, if clients that access a sql server named vista make distributed queries to mysybase ASE , you'll want to configure mysybase as a linked server on vista. To add a linked server, complete the following steps:. Start Enterprise Manager and then access the server you want to configure 2.

This opens the dialog box shown in Figure 3 4. In the Linked Server field, type the name of the linked server to create 5. If you're linking to a different data source, select the Other Data Source option button and then configure the data source using the input fields provided.

You can't configure unavailable fields for the selected provider. Data Source Provider Leave Blank. Server Options Collation compatible controls sort order settings. If you don't select this option, SQL Server uses the local sort order.

This affects the order of result sets, and you should note it when you develop SQL Server applications or configure clients. Leave it to the default setting Blank.

Data Access Set this option to enable the linked server for distributed query access. Set it to true. RPC Set this option to enable remote procedure calls from the linked server. If you don't set this option, SQL Server interprets data from the linked server using the default collation of the local server instance.

Note that only the SQL Server databases take advantage of this option. Set it to true Collation Name Set this option to assign a specific collation for queries and transactions. Note that you must clear the Collation Compatible check box before you can set this option. Leave this blank since we want to use Collation Compatible.

Connection Timeout Sets the timeout value for connections made to the remote. Leave it to the default setting.

Click OK to create the linked server. Next, you'll need to configure security settings for the linked server. Go to the security page still on Linked Server Properties. Select 'Be made using this security context'. Type a login and password that exists on the remote ASE server. Either way will work just fine. See Figure 4. In Figure6, You can now tree down the newly created link server and see all the databases and tables in each linked server.

Recycling can help. Four part naming. Execute statements. The following example executes the sysdatabases stored procedure on the remote server ASE Server nutmeg and stores the return status that indicates success or failure in retstat. Delete statements. Isn't this better? Sakhile -- Yes it is -- so where is your answer in the Add a comment. Active Oldest Votes. Employee Col1, NET code. Improve this answer. Lee Taylor 6, 14 14 gold badges 28 28 silver badges 43 43 bronze badges.

But something like that is definitely not advisable! I am right to assume that the Store Procedure won't handle concurrent requests. If two requests access the same time trying to insert the same primary key, and the primary key does not exist in the table yet, then, the both requests will simultaneously pass the first condition as the select can be run in parallel. The INSERT, however, needs to be run in exclusion, so one of the queries will add the new record, and the other one will have an exception indicating that there is a duplicate primary key.

Show 2 more comments. And when the value in the first column of a row changes, reset the goal value back to 00, and increment using the rules above. My columns are: Goal value would be: 12 00 12 01 12 01 12 02 04 00 04 01 04 02 04 02 Thanks!!! Amazing how internet works like a repository of information where an article from Feb has helped me today in March Thanks for a great tip :.

An article from Feb help me a lot in this May Your article and website is rock! Thanks for sharing and I can learn more in SQL it's all thanks to you :. Great tip. For me it did add the counter column in an unordered way, I have a date field in my table and when viewing the table the dates are ordered without sorting but the counter is all over the place compared to the date order.

Here is my solution which allows some extra room for using an order by to add the counter in an ordered manner and also would allow limiting which records to get the counter, if needed.

This is a very useful post. Simple way to add auto increment field without looping through each record on the table. Thanks for sharing, Pradeep. Hi, I got a task to do.

I need to insert , rows into Adventure Works DB table inorder to see how Proactive caching works in different scenarios.

My question is how to insert , rows at a time in a table? Can you let me know the script to generate it. Please do help me out. Thanks in Advance. This just saved me a ton of headaches and just help me improve a store procedures performance from minutes to seconds. It was using a loop to do this same idea, just row-by-row!!!!

Thank you so much! ExecuteNonQuery ; MessageBox. Close ;. You cannot use. If an update to a row violates a constraint or rule, violates the NULL setting for the column, or the new value is an incompatible data type, the statement is canceled, an error is returned, and no records are updated.

When an UPDATE statement encounters an arithmetic error overflow, divide by zero, or a domain error during expression evaluation, the update is not performed. The rest of the batch is not executed, and an error message is returned. If an update to a column or columns participating in a clustered index causes the size of the clustered index and the row to exceed 8, bytes, the update fails and an error message is returned.

UPDATE statements are allowed in the body of user-defined functions only if the table being modified is a table variable. Without this relationship, the query plan may produce unexpected join behavior and unintended query results.

The following examples demonstrate correct and incorrect methods of specifying a CTE when the CTE is the target object of the update operation. To avoid these higher level locks, consider dividing update statements that affect thousands of rows or more into batches, and ensure that any join and filter conditions are supported by indexes.

WRITE clause are minimally logged. Examples in this section demonstrate the basic functionality of the UPDATE statement using the minimum required syntax. The following example updates a single column for all rows in the Person. Address table. Examples in this section demonstrate ways that you can use to limit the number of rows affected by the UPDATE statement. The statement updates the value in the Color column of the Production. Product table for all rows that have an existing value of 'Red' in the Color column and have a value in the Name column that starts with 'Road'.

The following example updates the VacationHours column by 25 percent for 10 random rows in the Employee table. The following example updates the vacation hours of the 10 employees with the earliest hire dates.

The following example updates the PerAssemblyQty value for all parts and components that are used directly or indirectly to create the ProductAssemblyID The common table expression returns a hierarchical list of parts that are used directly to build ProductAssemblyID and parts that are used to build those components, and so on. Only the rows returned by the common table expression are modified.

Other tables participating in the cursor are not affected. The example doubles the value in the ListPrice column for all rows in the Product table. The following example uses the variable NewPrice to increment the price of all red bicycles by taking the current price and adding 10 to it. The following example uses a subquery in the SET clause to determine the value that is used to update the column.

The subquery must return only a scalar value that is, a single value per row. The following example sets the CostRate column to its default value 0. Examples in this section demonstrate how to update rows by specifying a view, table alias, or table variable. The following example updates rows in a table by specifying a view as the target object. The view definition references multiple tables, however, the UPDATE statement succeeds because it references columns from only one of the underlying tables.

For more information, see Modify Data Through a View. The follow example updates rows in the table Production. Examples in this section demonstrate methods of updating rows from one table based on information in another table.

The previous example assumes that only one sale is recorded for a specified salesperson on a specific date and that updates are current.

If more than one sale for a specified salesperson can be recorded on the same day, the example shown does not work correctly.



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