upsert

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Id of Upserted Mongo Document in C#

It has been well documented how to get a return Id from an Insert to a MongoDb collection in C# (Example).But how do I get that for an upserted document?Is there a way, short of querying for the Id ag[详细]

2023-04-12 20:52 分类：问答
Postgresql upsert query [duplicate]

This question already has answers here: Closed 10 years ago. Possible Duplicate: Insert, on duplicate update (postgresql)[详细]

2023-04-03 05:41 分类：问答
mysql_affected_rows(); does not work for checking if row exists

i am using mysql_affected_rows() to check if ihave to enter new record or update existing, but the problem is if the user tries to enter exactly same data as record which already exists it runs insert[详细]

2023-04-03 03:12 分类：问答
How do I write a simple insert or update in T-SQL?

I have a process that I do not want to track if something is a create or an update.Tracking would be complex.I would like to perform a create OR update. The schema is like...[详细]

2023-04-02 02:46 分类：问答
How to do an upsert with SqlAlchemy?

I have a record that I want to exist in the database if it is not there, and if it is there already (primary key exists) I want the fields to be updated to the current state.This is often called an up[详细]

2023-03-30 08:57 分类：问答
How to upsert two database tables with one SQL statement?

There are two database tables described in the following. The asterisk highlights the primary key开发者_如何学Cs.[详细]

2023-03-29 09:11 分类：问答
Deadlocks in SQL Server 2008 R2

Server: SQL Server 2008R2 Clients:Excel/ADO - 8 clients Server hardware:8 core/16GB Memory/OS:WinServer 2008SR2[详细]

2023-03-27 13:50 分类：问答
Drupal 7 DBTNG: How to retrieve the last INSERT id when using db_merge()

When using db_merge, it does not seem to be possible to retrieve the last insert ID if an INSERT was made.[详细]

2023-03-23 04:22 分类：问答
UPSERT into table with dynamic table name

Any better method to UPSERT into a table, provided :开发者_如何学JAVA Data upsert at ~1 row/second[详细]

2023-03-21 11:08 分类：问答
How to Update if the data exist else insert the new data (multiple rows)

I need to create a insert and update statement, when today date is not in the database it will insert else it will update the QTY (from excel 开发者_Python百科[this part I have done]) get from today.[详细]

2023-03-17 07:37 分类：问答