sql-merge

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T-SQL MERGE Performance in typical publishing context

I have situation where a \"publisher\" application essentially keeps a view model up to date by querying a VERY complex view and then merging the results into a denormalized view model table, using se[详细]

2023-04-04 20:20 分类：问答
MERGE INTO table containing AUTO_INCREMENT columns

I\'ve declared the following table for use by audit triggers: CREATE TABLE audit_transaction_ids (id IDENTITY PRIMARY KEY, uuid VARCHAR UNIQUE NOT NULL, `time` TIMESTAMP NOT NULL);[详细]

2023-03-12 04:38 分类：问答
How do I merge two tables in MySQL and where table 1 is primary

How do I merge two tables in MySQL? I\'ve looked at several other posts on this topic but they don\'t go into enough detail for me.[详细]

2023-03-10 23:38 分类：问答
UPDATE or MERGE of very big tables in SQL Server

I need to perform a daily update of a very large (300M records) and broad TABLE1. The the source data for the updates is located in another table UTABLE that is 10%-25% the rows of TABLE1 but is narro[详细]

2023-03-06 09:29 分类：问答
MERGE in Entity Framework

Is there a way t开发者_StackOverflowo call T-Sql\'s MERGE command from .NET Entity framework 4?No there no such built-in functionality - you must build your own. Very common is for example approach li[详细]

2023-03-01 13:41 分类：问答
UPDATE-no-op in SQL MERGE statement

I have a table with some persistent data in it. Now when I query it, I also have a pretty complex CTE which computes the values required for the result and I need to insert missing rows into the persi[详细]

2023-02-16 20:29 分类：问答
Is there a "Script table as - MERGE" function somewhere?

In SSMS 2008 R2, when I right click on a table I see \"Script Table as\" then options for Insert and Update.But what about Merge?Merge is really just th开发者_如何学Pythone two of these together.[详细]

2023-02-15 11:09 分类：问答
ORA-30926: unable to get a stable set of rows in the source tables

I am getting ORA-30926: unable to get a stable set of rows in the source tables in the following query:[详细]

2022-12-21 12:10 分类：问答