This way works based on any conditions you specify in the update. Here's an approach that doesn't require the brute-force 'ignore' which would only work if there was a key violation. UPDATE players SET age=32 WHERE user_name='steven' Therefore, a improved solution would be: - Try to update any existing row This is not in my opinion a data safety issue, but it is true that firing unnecessary events makes little sense. UPDATE players SET user_name='steven', age=32 WHERE user_name='steven' Īs Andy has commented, trying to insert first and then update may lead to firing triggers more often than expected. INSERT OR IGNORE INTO players (user_name, age) VALUES ('steven', 32) ![]() Same data as before: user_name='steven' and age=32. The logic is, for each UPSERT that you want to perform, first execute a INSERT OR IGNORE to make sure there is a row with our user, and then execute an UPDATE query with exactly the same data you tried to insert. No go.Īnd then, finally I used the brute force, with success. And this CASE can't be used (or at least I did not manage it) to perform one UPDATE query if EXISTS(select id from players where user_name='steven'), and INSERT if it didn't. ![]() So, I first thought of a IF clause, but SQLite only has CASE. Besides, I created the table with the clause ON DELETE CASCADE, which would mean that it'd delete data silently. Option 2: You cannot afford deleting the rowĪfter monkeying around with the previous solution, I realized that in my case that could end up destroying data, since this ID works as a foreign key for other table. It returns the id of the user 'steven' if any, and otherwise, it returns a new fresh id. Look at this code: INSERT INTO players (id, name, age)Ĭoalesce((select id from players where user_name='steven'), Let's say we want to UPSERT with the data user_name='steven' and age=32. Now the question comes: what to do to keep the old ID associated? If you are trying to insert/update a player whose ID already exists, the SQLite engine will delete that row and insert the data you are providing. In other words, you don't have foreign key, or if you have them, your SQLite engine is configured so that there no are integrity exceptions. Option 1: You can afford deleting the row I'd like to share this in a clean format to save some time to the people that may be in my situation. Sqlite> UPDATE COMPANY SET ADDRESS = 'Texas', SALARY = 20000.Well, after researching and fighting with the problem for hours, I found out that there are two ways to accomplish this, depending on the structure of your table and if you have foreign keys restrictions activated to maintain integrity. If you want to modify all ADDRESS and SALARY column values in COMPANY table, you do not need to use WHERE clause and UPDATE query will be as follows − Now, COMPANY table will have the following records. Sqlite> UPDATE COMPANY SET ADDRESS = 'Texas' WHERE ID = 6 ExampleĬonsider COMPANY table with the following records −įollowing is an example, which will update ADDRESS for a customer whose ID is 6. You can combine N number of conditions using AND or OR operators. ![]() SET column1 = value1, column2 = value2., columnN = valueN ![]() Syntaxįollowing is the basic syntax of UPDATE query with WHERE clause. You can use WHERE clause with UPDATE query to update selected rows, otherwise all the rows would be updated. SQLite UPDATE Query is used to modify the existing records in a table.
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