Sqlite insert or ignore11/10/2023 ![]() ![]() To get started we create a blank new app, add two pages and a service so we got something to work with and then install both the SQLite package and also the SQLite porter package plus the according Cordova plugins. This tutorial is by no means a general SQL introduction, you should know a bit about it when you incorporate this into your Ionic 4 app! Setting up our SQLite App INTO LANGUAGE_INSERT(LANGUAGE_ID, NAME, LAST_UPDATE) VALUES(1, 'English', TIMESTAMP ' 05:02:19.If your app needs a solid database or you already got data that you want to inject in your Ionic application, there’s the great underlying SQLite database inside that week can use just like any other storage engine to store our data.īut the usage of the SQLite database is a bit more tricky than simply using Ionic Storage, so in this tutorial we will go through all the steps needed to prepare your app, inject some seed data and finally make different SQL queries on our database.įor a more up to date tutorial also check out the Building an SQLite Ionic App with Capacitor! "INSERT IGNORE ROW INDEX" INSERT /*+ IGNORE_ROW_ON_DUPKEY_INDEX(LANGUAGE_INSERT, LANGUAGE_INSERT_PK) */ "UPDATE OR INSERT INTO" UPDATE OR INSERT INTO language_insert(language_id, name, last_update) "ON CONFLICT DO UPDATE SET" INSERT INTO language_insert(language_id, name, last_update)ĭO UPDATE SET (language_id, name, last_update) = (EXCLUDED.language_id, EXCLUDED.name, EXCLUDED.last_update) "ON CONFLICT DO NOTHING" INSERT INTO language_insert(language_id, name, last_update) "ON CONFLICT DO NOTHING" and "ON CONFLICT DO UPDATE SET" "INSERT OR REPLACE" INSERT OR REPLACE INTO language_insert(language_id, name, last_update) "INSERT OR IGNORE" INSERT OR IGNORE INTO language_insert(language_id, name, last_update) "INSERT OR IGNORE" and "INSERT OR REPLACE" "REPLACE INTO" REPLACE INTO language_insert(language_id, name, last_update) "INSERT IGNORE" INSERT IGNORE INTO language_insert(language_id, name, last_update) Which databases support replace/insert methods? MySQL There will be no insertion errors, the first three lines will be replaced and the fourth to sixth lines will be added to the table. If we set the "REPLACE INTO" method in the settings, the result of the insert will look like this: There will be no insertion errors, the first three lines will not change, and the fourth to sixth lines will be added to the table. If we set the "INSERT IGNORE" method in the settings, the result of the insert will look like this: csv file with the following content and try to use the replace methods. If we try to execute this request twice, we will get the following error: SQL Error : Duplicate entry '1' for key 'language_insert.PRIMARY' (This message may look different in other databases). INSERT INTO sakila.language_insert (language_id,name,last_update) VALUES We use a small, simple, slightly-modified Sakila (MySQL) table - sakila.language CREATE TABLE language_insert ( Let's take a look at an example of how this works. If the base does not support the replacement methods, or if we have not added an implementation yet, then the combo with the list will be disabled.įurther, you will find a list of databases supporting these methods and examples of syntax. In this case, the list of methods will consist of only one item except. The database can only support the replace method or the ignore method. The options available depend on the target database you are importing to. ![]() The choice of the replacement method is in the import settings - in "Data load settings".īy default, the selection is, you can select other options from the drop-down list. Some databases have syntax constructs in addition to the INSERT INTO that may help. Sometimes there are situations when you want to ignore the current primary key value when importing into a table. ![]()
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