如何删除自动增量并避免重复

Question

I created a user log table "id" with autoincrement primary key earlier. How can I drop the autoincrement in the id field in my newer DB version? And I want to insert only one field to DB using only one DateTime record because now it inserts duplicates in the same DateTime records.

CREATE TABLE IF NOT EXISTS tbl_user_log (
    id   INTEGER  PRIMARY KEY AUTOINCREMENT,
    imei TEXT,
    date_time DATETIME,
    user_name TEXT,
    internet BOOLEAN,
    device_model TEXT,
    battery_level FLOAT,
    app_version TEXT
);

 tlog.setDatetime(new SimpleDateFormat("yyyy-MM-dd HH:mm", Locale.ENGLISH).format(new Date()));

Answer 1

To drop the autoincrement in the id field, you should try this:

ALTER TABLE tbl_user_log
ALTER COLUMN id
DROP AUTOINCREMENT;