insert-update

I need to insert or update and I found the method insertWithOnConflict of the SQLiteDatabase, but I do not know how it checks if the entry already exists. Theoretically I need a "Where" argument to check if a certain ID exists, and if so, it should replace all other columns. This is what I have now, but I don´t think that the second argument is the unique id ContentValues args = new ContentValues(); args.put(AppDatabase.COLUMN_ID, entry.getId()); args.put(AppDatabase.COLUMN_NAME, entry.getAppname()); args.put(AppDatabase.COLUMN_URL, entry.getAppUrl()); database.insertWithOnConflict(AppDatabase

Typically changes to a key in a red-black tree need to be performed by removing, then re-inserting the node. Is it possible to performs key updates to a node in a red black tree that is more efficient than delete+insert? Implement update with [search if required +] delete + insert 1 - delete the key O(log n) 2 - insert a new node with the new key O(log n) Even if you search for a key first, it's O(log n) . See this page for more details on RBT. 来源： https://stackoverflow.com/questions/22684024/possible-to-update-nodes-key-in-a-red-black-tree-without-removing-and-inserting

I need to run this query : UPDATE ( SELECT r.* FROM booked r INNER JOIN ( SELECT a.st_code as from_t , b.st_code as to_t FROM `stops_at` a CROSS JOIN `stops_at` b WHERE (a.stop_no < b.stop_no) and (a.train_no = b.train_no) and (a.train_no = '11280') ) new ON (r.st_from = new.from_t) and (r.st_to = new.to_t) and r.date = '2013-04-16' ) temp SET temp.seat_ac = temp.seat_ac-5 but on execution it gives an error: #1288-The target table temp of the UPDATE is not updatable . Any solutions? I think your UPDATE syntax is incorrect. See if this works: UPDATE booked r INNER JOIN ( SELECT a.st_code as

I'm using Excel to produce reports for a support ticketing system, and I'd like to use VBA to simplify the process of updating the report data. What I want to do is import an Excel file dumped from the ticketing system into the Excel file I'm using for reporting, but with a twist. I need to use the value in one column to identify whether the ticket is new or existing. If it's new, I want to add it to the reporting file. If it's existing, I want to overwrite the matching row (based on the matching column value, which is the ticket number) with the imported data. So the basic process would be:

How to update the text of second comment to "new content" { name: 'Me', comments: [{ "author": "Joe S.", "text": "I'm Thirsty" }, { "author": "Adder K.", "text": "old content" }] } Updating the embedded array basically involves two steps: 1. You create a modified version of the whole array. There are multiple operations that you can use to modify an array, and they are listed here: http://www.rethinkdb.com/api/#js:document_manipulation-insert_at In your example, if you know that the document that you want to update is the second element of the array, you would write something like oldArray

In a nutshell: I'm making a scheduler for my client and, due to constraints, it needs to be in a single excel file (as small as possible). So one worksheet works as the UI and any others will be tables or settings. I'm trying to use SQL (to which I'm new) to work with the schedule data on a single worksheet (named "TblEmpDays"). So I need to add/update and retrieve records to/from this worksheet. I was able to get a SELECT query to work with some arbitrary data (and paste to a Range). However, I'm not able to get INSERT or UPDATE to work. I've seen it structured as INSERT INTO [<table name>$]