ADD COLUMN IF NOT EXISTS and AFTER

[tiagocaus]

I need to add new columns to my app. How do I add a new column at a given position using AFTER?

Example:

db.transaction(function (tx) {
    tx.executeSql("ALTER TABLE checklist ADD COLUMN IF NOT EXISTS assinatura_chegada text AFTER assinatura");
});

[MikeDimmickMnetics]

SQLite does not support the IF NOT EXISTS or AFTER clauses. See https://www.sqlite.org/lang_altertable.html for the supported syntax.

To determine if the table already contains the column, use PRAGMA table_info(checklist).

SQLite does not support inserting columns. You can only append them to the end of the table definition.