upsert

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Add or replace entity in Azure Table Storage

I\'m working with Windows Azure Table Storage and have a simple requirement:开发者_开发知识库 add a new row, overwriting any existing row with that PartitionKey/RowKey. However, saving the changes alw[详细]

2023-01-30 19:55 分类：问答
get mongodb _id object after upsert with php

is it possible to get the new/updated _id after the query? example code: $key = array( \'something\' => \'unique\' );[详细]

2023-01-30 04:21 分类：问答
Insert into a MySQL table or update if exists

I want to add a row to a database table, but if a row exists with the same unique key I want to update the row.[详细]

2023-01-25 07:19 分类：问答
What is the best way to write code that first checks if a row exists and updates or inserts it accordingly?

I am rather new to the more modern ways of coding database persistence, and my intuition is telling me I probably am missing something because my code seems \"inelegant\" but I do not see another way[详细]

2023-01-22 06:10 分类：问答
INSERT IF NOT EXISTS ELSE UPDATE?

I\'ve found a few \"would be\" solutions for the classic \"How do I insert a new record or update one if it already exists\" but I cannot get any of them to work in SQLite.[详细]

2023-01-14 21:56 分类：问答
Is there a way to upsert a list with a single query?

I know this question has been asked before, but that\'s a different scenario. I\'d like to have a collection like this:[详细]

2023-01-11 12:05 分类：问答
GridFS in Ruby: How to upsert?

Does GridFS have an upsert? For example, if i wan开发者_高级运维t to save an image with a specified _id, and one with that same _id already exists, i want it to overwrite (update) it. Otherwise, inse[详细]

2023-01-10 19:30 分类：问答
What commit styles are available in MongoDB?

In some sense, the default \"save\" operation appears to be asynchronous in MongoDB.It seems that when a client sav开发者_如何学JAVAes a document, it will typically receive a successful response immed[详细]

2023-01-06 02:15 分类：问答
upsert with addition

How would you write the following in Microsoft SQL Server 2008? IF EXISTS(SELECT * FROM Table WHERE Something=1000)[详细]

2022-12-31 23:22 分类：问答
Mysql on duplicate key update + sub query

Using the answer from this question: Need MySQL INSERT - SELECT query for tables with millions of records[详细]

2022-12-28 17:33 分类：问答