12/20/2023 0 Comments Sqlite insert null for double![]() ![]() may be you have provided default value for the column. keyser yeah you are correct, I also posted another Solution as answer. Your master journal entries should have two accounts - the one that is debited and the one that is credited, for the same singular amount, in the same transaction. insert into table (colum2,colum3) values (100, 'text') leave the column which you want to set null. param.Value DBNull.Value Or you can use that instead of your if operator: param.Value string.IsNullOrEmpty (activity.StaffId) activity.StaffId : (object)DBNull. This means that the thing you are inventorying is neither created nor destroyed, but simply moved from place to place. You can use DBNull.Value when you need to pass NULL as a parameter to the stored procedure. ![]() Your implementation cannot work, in any version of SQL.īookkeeping (Inventory Control of Money) is a rather simple, you simply (like any other goop or stuff control system) maintain mass balance. ![]() Or is there some other way round I might have missed, so a trigger like this could work? )īut I understand RETURNING values can't be brought into other statements, only back to the application. What I want to do is insert a row into "journal", and rows into "trans" which balance the journal entry (i.e. This is a simplified schema for a double-entry bookkeeping system, with a possibly-handy trigger to ensure data integrity: CREATE TABLE journal (įOREIGN KEY(journal_id) REFERENCES journal(id)ĬREATE TRIGGER verify_trans AFTER INSERT ON journalĬASE (SUM(cr) 0) WHEN 1 THEN RAISE(ROLLBACK, "Transactions don't balance") END Hello! I think I've hit a wall when it comes to designing a schema & SQLite's current capabilities, and hoped an SQLite expert could confirm. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |