SQL 错误 [1305] [42000]: FUNCTION biidvs_pad.nextval does not exist

The error message you are seeing indicates that a function called "nextval" is being called in a SQL statement, but this function does not exist in the database.

In MySQL, the "nextval" function does not exist, but it is used in some other databases (such as PostgreSQL) to get the next value from a sequence object.

If you are trying to generate a sequence of unique values for a column in MySQL, you can use the "AUTO_INCREMENT" attribute on the column definition. For example, you can define a table with an "id" column as follows:

CREATE TABLE mytable (
  id INT AUTO_INCREMENT PRIMARY KEY,
  name VARCHAR(255)
);

Then when you insert a new row without specifying a value for the "id" column, MySQL will automatically generate a unique value for it:

INSERT INTO mytable (name) VALUES ('John');

The "id" column will be automatically incremented for each new row inserted into the table.

So, you need to modify your SQL statement to use the appropriate syntax for generating unique values in MySQL.