Duplicate entry 'Manufacturer Name-0' for key 'PRIMARY' - php

Question

I'm an intermediate at best and help will greatly be appreciated. I'm trying to upload csv file with database of drugs, manufacturer, generic names etc.
I use this for the .php
$this->db->insert('acc_coa',$manufacturer_coa);
}
$check_category = $this->db->select('*')->from('product_category')->where('category_name',$insert_csv['category_id'])->get()->row();
if(!empty($check_category)){
$category_id = $check_category->category_id;
}else{
$categorydata=array(
'category_name' => $insert_csv['category_id'],
'status' => 1
);
if ($count > 0) {
$this->db->insert('product_category',$categorydata);
}
And this for database:
CREATE TABLE acc_coa (
HeadCode varchar(50) COLLATE utf8_unicode_ci NOT NULL,
HeadName varchar(100) COLLATE utf8_unicode_ci NOT NULL AUTO_INCREMENT,
PHeadName varchar(50) COLLATE utf8_unicode_ci NOT NULL,
HeadLevel int(11) NOT NULL,
IsActive tinyint(1) NOT NULL,
IsTransaction tinyint(1) NOT NULL,
customer_id int(11) DEFAULT NULL,
manufacturer_id int(11) DEFAULT NULL,
IsGL tinyint(1) NOT NULL,
HeadType char(1) COLLATE utf8_unicode_ci NOT NULL,
IsBudget tinyint(1) NOT NULL,
IsDepreciation tinyint(1) NOT NULL,
DepreciationRate decimal(18,2) NOT NULL,
CreateBy varchar(50) COLLATE utf8_unicode_ci NOT NULL,
CreateDate datetime NOT NULL,
UpdateBy varchar(50) COLLATE utf8_unicode_ci NOT NULL,
UpdateDate datetime NOT NULL,
PRIMARY KEY (HeadName)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;
But anytime i try i get this
Error Number: 1062
Duplicate entry 'Manufacturer Name-0' for key 'PRIMARY'
INSERT INTO acc_coa (HeadCode, HeadName, PHeadName, HeadLevel, IsActive, IsTransaction, IsGL, HeadType, IsBudget, manufacturer_id, IsDepreciation, DepreciationRate, CreateBy, CreateDate) VALUES ('502020000001', 'Manufacturer Name-0', 'Account Payable', '3', '1', '1', '0', 'L', '0', 0, '0', '0', '1', '2021-05-27 18:15:47')
Filename: C:/wamp64/www/efkwa/system/database/DB_driver.php
Line Number: 691

Answer 1

Are there any rows already inserted? It looks like that the Primary-Key-Value "Manufacturer Name-0" is already present.
Maybe your insert is executed twice?
Try to execute
DELETE FROM acc_coa;
and then try to insert again.

Answer 2

This error indicates that you already entered an example / row with that value (Manufacturer Name-0), the primary key acts as a unique identifier for each example, therefore it cannot be repeated in other examples / rows of the table

Answer 3

It's been resolved...
I deleted from line 691
// Display errors
return $this->display_error(array('Error Number: '.$error['code'], `enter code here`$error['message'], $sql));
But i would like to know why ?

Answer 4

You can do the following in MySQL client:
Create and insert the data into a temporary or intermediate table:
CREATE TABLE acc_coa_tmp AS SELECT * FROM acc_coa WHERE 1 = 0;
Note: No primary key on new table acc_coa_tmp.
In PHP:
try {
:
$db->insert(...);
} catch (SqlException $ex) {
// Failed insert CSV
// SQL insert into new table acc_coa_tmp
$db->insert(...);
}