I have a web application which receives about 50 hits per second, and on each hit I am upsert\'ing around 10 records in a central SQL Server database. Roughly once every 3 seconds I am upserti开发者_如
Upsert (Replace) Update If Exists Insert If Not Exists (Using Primary Key as Pipel开发者_如何学编程ined)What do you mean by \"update if exists\"? The standard Redis SET commands (SET, MSET, HSET,
This question already has answers here: Closed 10 years ago. Possible Duplicate: How do I update if exists, insert if not (aka upsert or merge) in MySQL?
Is there an easy way in postgres to do the equivalent of the following in开发者_JS百科 sqlite? INSERT INTO foo (x, y, z) VALUES (1, 2, 3) ON CONFLICT replace;
I\'ve been trying to run a query in drupal that\'ll update entries if they already exists or insert a new entry if it doesnt. The code looks like this at the moment:
I\'m trying to execute this query and when it finds a record for $serial, it can update it. OR, if the serial doesn\'t exist, it can write a开发者_运维问答 new record.
I load data from a MySQL database table into a DataSet. Example: MySqlConnection myConnection = new MySqlConnection(/*connection string*/);
My app (which uses MySQL) is doing a large number of subsequent upserts. Right now my SQL looks like this:
Does ActiveRecord have a built-in upsert functionality? I know I could write it myself but I开发者_C百科 obviously don\'t want to if such a thing already exists.There is an awesome new feature in rail
I have a simple INSERT query where I need to use UPDATE instead when the primary key is a duplicate. In MySQL this seems easier, in Oracle it seems I need to use MERGE.
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