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16 cze 2010 · The common solution seems to be this: DELETE table WHERE id IN(SELECT TOP (100) id FROM table ORDER BY id asc) But I also found this method here: delete table from (select top (100) * from table order by id asc) table.
The SQL Server (Transact-SQL) DELETE TOP statement is used to delete records from a table in SQL Server and limit the number of records deleted based on a fixed value or percentage. Syntax. The syntax for the DELETE TOP statement in SQL Server (Transact-SQL) is: DELETE TOP (top_value) [ PERCENT ] . FROM table. [WHERE conditions];
29 wrz 2020 · DELETE TOP (50) PERCENT FROM customer; Deleting First 'n' Ordered Rows. To delete a set of ordered rows, we can use TOP together with ORDER BY in a subselect statement like so: DELETE T FROM ( SELECT TOP (5) id FROM customer ORDER BY name ) T; Or, alternatively:
If you need to use TOP to insert, delete, or modify rows in a meaningful chronological order, use TOP with an ORDER BY clause specified in a subselect statement. See the following Examples section in this article. You can't use TOP in an UPDATE and DELETE statements on partitioned views.
28 paź 2018 · (SELECT TOP (100) ID FROM MyTable ORDER BY Col2 DESC) AS ToDelete. ON MyTable.ID = ToDelete.ID. This is an explicit JOIN statement with a subquery. This practically results in the same execution plan as the previous method, except that it allows the use of composite primary keys in the JOIN condition.
The SELECT TOP clause is used to specify the number of records to return. The SELECT TOP clause is useful on large tables with thousands of records. Returning a large number of records can impact performance. Example. Select only the first 3 records of the Customers table: SELECT TOP 3 * FROM Customers; Try it Yourself »
3 gru 2019 · Instead of deleting 100,000 rows in one large transaction, you can delete 100 or 1,000 or some arbitrary number of rows at a time, in several smaller transactions, in a loop. In addition to reducing the impact on the log, you could provide relief to long-running blocking.
