Membership in the db_ddladmin fixed database role.The DROP TABLE statement requires the user to have one of the following: DROP TABLE with IF EXISTS (SQL Server 2016 and up).Querying the sys.tables System View (all supported versions).OBJECT_ID() function (all supported versions).If it doesn't exist you can skip the DROP TABLE.Īt an example of what we see if we attempt to drop a table that doesn’t existĪnd the following ways to conditionally run DROP TABLE: If not, let me know it.The solution is to add conditional logic to your T-SQL to check if theĮxists before trying to drop the table. If new sequences were added, update the database and also the change log meta data.Check with each start, if new sequences were added.Add a database change log file to your application (e.you can use a RPC call and pass the statements, which have to be executed (well ordered of course) via an text array to the function and execute it there. I am using that with my local SQFLite database (for mobile devices), but the same procedure also can be used with Supabase. Until now I never used it, but I am keeping it for documentation reason. I thought it can be useful for error detection. I also use the table "statements", where I store the executed statements. last stored sequence number was 3 and with the new release the sequences 4 and 5 were added, then the app will execute the statements of this sequence. This allows us to detect with each start of the application, if a new sequence number was added. Here we store the meta data (especially the last executed sequence number). It is an array of change sets for my database. "sqlStatement": "CREATE TABLE IF NOT EXISTS tp_user_card_cache_data (id TEXT PRIMARY KEY, favorite_location TEXT NOT NULL, travel_motto TEXT NOT NULL, user_name TEXT NOT NULL, avatar_image_path TEXT, user_id TEXT NOT NULL, avatar_name TEXT NOT NULL, is_suggested INTEGER NOT NULL, updated_at text NOT NULL) " "sqlStatement": "CREATE TABLE IF NOT EXISTS messages (id TEXT PRIMARY KEY, created_at TEXT NOT NULL, inbox_owner TEXT NOT NULL, sender TEXT NOT NULL, message_content_id TEXT, message_type TEXT NOT NULL, read INTEGER NOT NULL) " "sqlStatement": "CREATE TABLE IF NOT EXISTS community_news_short_info (id TEXT PRIMARY KEY, created_at TEXT NOT NULL, type TEXT NOT NULL, image_url TEXT NOT NULL, local_image_path TEXT NOT NULL, en_title TEXT NOT NULL, en_subtitle TEXT NOT NULL, de_title TEXT NOT NULL, de_subtitle TEXT NOT NULL,content_key TEXT NOT NULL, is_new INTEGER NOT NULL) " "sqlStatement": "ALTER TABLE local_image_meta_data ADD unit TEXT " "sqlStatement": "ALTER TABLE local_image_meta_data ADD temperature REAL " "sqlStatement": "CREATE TABLE IF NOT EXISTS statistics (statistics_id TEXT PRIMARY KEY, google_places_id TEXT NOT NULL, city TEXT NOT NULL, country TEXT NOT NULL) " "sqlStatement": "CREATE TABLE IF NOT EXISTS local_image_meta_data (local_image_meta_data_id TEXT PRIMARY KEY, path String NOT NULL UNIQUE, google_place_id TEXT NOT NULL, creation_date_time TEXT NOT NULL, is_public INTEGER NOT NULL, is_sight INTEGER NOT NULL, is_natural_feature INTEGER NOT NULL) " "sqlStatement": "CREATE TABLE IF NOT EXISTS statement (statement_id TEXT PRIMARY KEY,statement TEXT NOT NULL,change_set_id Text NOT NULL,FOREIGN KEY (change_set_id) REFERENCES change_set(change_set_id)) " "sqlStatement": "CREATE TABLE IF NOT EXISTS change_set (change_set_id TEXT PRIMARY KEY,sequence_number INTEGER NOT NULL UNIQUE,author TEXT,creation_date TEXT NOT NULL,execution_time TEXT NOT NULL) " I will see that in the next days.īeta Was this translation helpful? Give feedback. I saw the example, which was mentioned by but I thought that partitioning is maybe the better and faster way to handle a large amount of data, but I don't know yet, if I will use this solution, because I want to use webhooks in order to use OneSignal to send push notifications to the users, when they receive a new message in their inbox. The result is a new table with the name "inbox_". id:: text, '- ', '_ ') ĮXECUTE format( 'CREATE TABLE public.%I () INHERITS (public.inbox) ', 'inbox_ ' || _user_id_table_format) ĮXECUTE format( 'alter table public.%I enable row level security ', 'inbox_ ' || _user_id_table_format) ĮXECUTE format( 'CREATE POLICY "Enable insert for authenticated users only" ON public.%I AS PERMISSIVE FOR INSERT TO authenticated WITH CHECK (true) ', 'inbox_ ' || _user_id_table_format) ĮXECUTE format( 'CREATE POLICY "Enable read access for inbox owner" ON public.%I AS PERMISSIVE FOR SELECT TO authenticated USING (auth.uid() = inbox_owner) ', 'inbox_ ' || _user_id_table_format)
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