You’ll have to attach Database X with Database Y using the ATTACH command, then run the appropriate Insert Into commands for the tables you want to transfer. INSERT INTO X.TABLE SELECT * FROM Y.TABLE; // “INSERT or IGNORE” if you want to ignore duplicates with same unique constraint Or, if the columns are not matched … Read more
You could use row_factory, as in the example in the docs: import sqlite3 def dict_factory(cursor, row): d = {} for idx, col in enumerate(cursor.description): d[col[0]] = row[idx] return d con = sqlite3.connect(“:memory:”) con.row_factory = dict_factory cur = con.cursor() cur.execute(“select 1 as a”) print cur.fetchone()[“a”] or follow the advice that’s given right after this example in … Read more
In short, you can’t. There are a couple of reasons why creating a search interface within a Fragment is not possible. When creating a searchable interface, you must specify a default “searchable activity” in your Android manifest. As I’m sure you know, a Fragment cannot exist without a parent Activity and thus, this separation is … Read more
The next link will bring you to a great tutorial, that helped me a lot! How to SQLITE in C# I nearly used everything in that article to create the SQLite database for my own C# Application. Don’t forget to download the SQLite.dll, and add it as a reference to your project. This can be … Read more
Just declare a default value for a field: CREATE TABLE MyTable( ID INTEGER PRIMARY KEY, Name TEXT, Other STUFF, Timestamp DATETIME DEFAULT CURRENT_TIMESTAMP ); However, if your INSERT command explicitly sets this field to NULL, it will be set to NULL.
It is: boolean value = cursor.getInt(boolean_column_index) > 0;
You can’t. Although the SQL-92 syntax to add a foreign key to your table would be as follows: ALTER TABLE child ADD CONSTRAINT fk_child_parent FOREIGN KEY (parent_id) REFERENCES parent(id); SQLite doesn’t support the ADD CONSTRAINT variant of the ALTER TABLE command (sqlite.org: SQL Features That SQLite Does Not Implement). Therefore, the only way to add … Read more
It really depends on the data you want to store. SQLite Large amounts of same structured data should be stored in a SQLite database as databases are designed for this kind of data. As the data is structured and managed by the database, it can be queried to get a sub set of the data … Read more
Just a misapplied abstraction it seems to me. A db cursor is an abstraction, meant for data set traversal. From Wikipedia article on subject: In computer science and technology, a database cursor is a control structure that enables traversal over the records in a database. Cursors facilitate subsequent processing in conjunction with the traversal, such … Read more
No, you have to add them one at a time. See the syntax diagram at the top of SQLite’s ALTER TABLE documentation: There’s no loop in the ADD branch so no repetition is allowed.