insert-update_开发者

How can I insert a row if it doesn't already exist while updating multiple rows?

I have a MySQL query that looks like this: UPDATE `Table` SET `Column` = CASE WHEN `Option Id` = \'1\' THEN \'Apple\'[详细]

2023-03-31 18:00 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

C# Insert new record to dataset with sql

i have spent the few days trying to get this to work and checked a tonne of tutorials but it still won\'t work. i get go build errors and it works perfectly, but the new row isn\'t loading into the da[详细]

2023-03-28 05:10 分类：问答

Access behaviour - it wants to update records, I want it to insert new ones, track old ones via timestamp

I am designing a database where I wish to track changes in my tables, in this case the \"person\" table, such that what appears in my Access user interface to be an edit to a person record, actually a[详细]

2023-03-23 05:02 分类：问答

Primary key value after insertion of row in SQL Server 2005

In SQL Server 2005 I am inserting a row into a table usinga stored procedure and I want to fetch the new primary开发者_高级运维 key value justafter inserting that row. I am using following approach to[详细]

2023-03-22 04:58 分类：问答

Rails Migration Update existing records while creating entries in another table

I am trying to set up Beta Invites for my Rails application. I have an Invitation model and a User model.[详细]

2023-03-19 13:38 分类：问答

T-Sql Update Problem

Update Inv01 Set PrintStat = 1 where Inv_No = \'335059\' This query taking too 开发者_如何学Pythonmuch time even nine minutes finished.Please help meIndex your Inv01 table on the Inv_No column, that\[详细]

2023-03-18 03:24 分类：问答

Update a column in MySQL

I have a table table1 with three columns and a bunch of rows: [key_col|col_a|col_b] I want to update col_a with a set of values (i.e. leaving col_b unchanged), somethin开发者_如何学编程g like this:[详细]

2023-03-16 07:29 分类：问答

Django - save() update on duplicate key

I have little application which allows a user to rate a video. The user can rate only once. So I have defined the uniqueness on the model.[详细]

2023-03-13 11:19 分类：问答

How to insert 3 arrays into 2 MySql tables?

I have 3 simple arrays with same number of items $id= array(1, 2, 3, 4, 5); $fruit= array(\'apple\', \'banana\', \'ananas\', \'orange\', \'lemon\');[详细]

2023-03-12 04:51 分类：问答