7/13/2023 0 Comments Sqlitestudio insert column orderTry (Connection conn = DatabaseConnection. You can actually have a column type (decalred) of virtually anything, even something like mycolumn rumplestiltskin NOT NULL and this will be recorded/stored as such (type affinity will be NUMERIC). If the user leaves both empty, finishes completing the form, and clicks the Save button, this is when I receive the error mentioned above.ĭata to insert: company_id: (empty) (auto increment)Ĭode to insert (I receive the error with this): String sql = "INSERT INTO companies " 2 Answers Sorted by: 2 The answer will be because that was what was used when creating the table, or altering the table and adding the column. I ask a few things to the user, there is two fields that are optional to complete but, if those fields have data, they need to be unique on the entire database. With SQL databases (like us) the order which rows are displayed in isnt guaranteed unless you tell it a column to sort by. For example: CREATE TABLE tablename ( column1 datatype constraint, column2 datatype constraint. In the parentheses is the list that defines each column in the table and what kind of data it displays. Error received: SQLite_CONSTRAINT_UNIQUE] A UNIQUE constraint failed: companies.ncf CREATE TABLE is the keyword that tells the database system what you want to do.
0 Comments
Leave a Reply. |