It looks like this is a SQLite oddity. According to a Laracast forum thread about the same issue: When adding a table from scratch, you can specify NOT NULL. However, you can’t do this when adding a column. SQLite’s specification says you have to have a default for this, which is a poor choice. Looking … Read more
I try to avoid emotive replies and hyperbole but I am truly astonished at the lack of knowledge about sqlite displayed on this page. Different database implementations serve different needs and from the operational specs you provide, sqlite3 seems ideal for your needs. To elaborate: sqlite3 is fully ACID compliant, meaning it ensures atomic commits, … Read more
You don’t need to use any comparison operator in order to compare a boolean value in your where clause. If your ‘boolean’ column is named is_selectable, your where clause would simply be: WHERE is_selectable
select quote(uid) from blobs returns: X’0123456789ABCDEF0123456789ABCDEF’ and if you really need it in lowercase, you can use: select lower(quote(uid)) from blobs
No, sqlite3 databases are very lightweight systems. They need no server and all data is stored in one file. A username/password is not supported by the sqlite/sqlite3 package. In order to achieve simplicity, SQLite has had to sacrifice other characteristics that some people find useful, such as high concurrency, fine-grained access control, a rich set … Read more
Add the dependencies Open pubspec.yaml and in the dependencies section add the following lines: sqflite: ^1.0.0 path_provider: ^0.4.1 The sqflite is the SQFlite plugin of course and the path_provider will help us get the user directory on Android and iPhone. You can check the most up-to-date version numbers here: sqflite and path_provider. Make a database … Read more
From the command line, do this: sqlite3 MyDatabase.sqlite VACUUM; CTRL-D to exit the sqlite console. Done! The -wal file should now have a size of 0 and everything should be in your main database file.
i think the issue is that the EntityFramework Core can’t create folders by itself while using SQLite provider. Don’t know if the issue also appears when using other filebased database providers. i had the same issue: my datasource was something like: optionsBuilder.UseSqlite(@”Data Source=c:\foo_db\bar_db.db”); after i created the “foo_db” folder inside the c:\ drive, the problem … Read more
This should work: [someone@somewhere ~]$ echo “select * from sometable;” > file.sql [someone@somewhere ~]$ sqlite3 file.db < file.sql 10/02/2012 11/01/2012 09/03/2012
select replace(str, rtrim(str, replace(str, “https://stackoverflow.com/”, ”)), ”) from table; Step-by-step explanation. For example, we have the string: /storage/udisk/1200 Mics/[2002] 1200 Micrograms/1200 Mics – 03 – Mescaline.mp3 The replace(str, “https://stackoverflow.com/”, ”) removes / chars from str so we will have: storageudisk1200 Mics[2002] 1200 Micrograms1200 Mics – 06 – Ecstasy.mp3 Let’s call this noslashes. Next we use … Read more