ERROR 1062 (23000) Duplicate entry '/-de' for key 'PRIMARY'

1. How do I fix error 1062?
2. What is meant by duplicate entry for key primary?
3. What is connection failed 1062?
4. How do I ignore duplicate records in MySQL?
5. What is the primary key?
6. Can we set multiple primary key in single table?
7. How do you find the primary key?
8. What is a primary key with example?
9. Why primary key is required?
10. What is the formula to remove duplicates in Excel?
11. How do you remove both duplicates in Excel?

How do I fix error 1062?

1062 - Duplicate Entry

And when you are trying to insert a new row, ignore the primary key column or insert NULL value to primary key. You may assigned a column as unique and trying to insert a new row with already existing value for that column will produce this error.

What is meant by duplicate entry for key primary?

When creating a primary key or unique constraint after loading the data, you can get a “Duplicate entry for key 'PRIMARY'” error. If the data in the source database is valid and there are no any duplicates you should check which collation is used in your MySQL database.

What is connection failed 1062?

If you have received this warning on your PC, it means that there was a malfunction in your system operation. Error code "Error 1062" is one of the issues that users may get as a result of incorrect or failed installation or uninstallation of software that may have left invalid entries in system elements.

How do I ignore duplicate records in MySQL?

Use the INSERT IGNORE command rather than the INSERT command. If a record doesn't duplicate an existing record, then MySQL inserts it as usual. If the record is a duplicate, then the IGNORE keyword tells MySQL to discard it silently without generating an error.

What is the primary key?

A primary key is the column or columns that contain values that uniquely identify each row in a table. A database table must have a primary key for Optim to insert, update, restore, or delete data from a database table.

Can we set multiple primary key in single table?

A table can have only ONE primary key; and in the table, this primary key can consist of single or multiple columns (fields).

How do you find the primary key?

Primary Keys. The primary key of a table is the column whose values are different in every row. Because they are different, they make each row unique. If no one such column exists, the primary key is a composite of two or more columns whose values, taken together, are different in every row.

What is a primary key with example?

A primary key is a column -- or a group of columns -- in a table that uniquely identifies the rows in that table. For example, in the table below, CustomerNo, which displays the ID number assigned to different customers, is the primary key.

Why primary key is required?

Each database table needs a primary key because it ensures row-level accessibility. If you choose an appropriate primary key, you can specify a primary key value, which lets you query each table row individually and modify each row without altering other rows in the same table.

What is the formula to remove duplicates in Excel?

To begin with, select the range in which you want to ddelete dupes. To select the entire table, press Ctrl + A. Go to the Data tab > Data Tools group, and click the Remove Duplicates button. The Remove Duplicates dialog box will open, you select the columns to check for duplicates, and click OK.

How do you remove both duplicates in Excel?

Note: If you need to remove the whole rows of the duplicate values, please check Select entire rows in the Select Duplicate & Unique cells dialog box, and all the duplicate rows are selected immediately, then click Home > Delete > Delete Sheet Rows, and all the duplicate rows will be removed.