Summary of common problems when importing Excel data into Mysql: How to solve the garbled problem encountered when importing data?

Summary of common problems when importing Excel data into Mysql: How to solve the garbled problem encountered when importing data?

Importing Excel data to Mysql database is a common task in daily work. However, sometimes during the import process, garbled characters may be encountered, resulting in incorrect data display. This article will summarize common garbled code problems and provide solutions to help readers solve the garbled code problem when importing data.

1. Problem: After importing data, Chinese characters become garbled and appear as a string of garbled characters.
   Solution: Generally speaking, this is caused by a character set mismatch. Check whether the character set of the database table is correct and ensure it is consistent with the character set of the Excel file. If the character set of the table is utf8, you can try to use the following code to import:

LOAD DATA LOCAL INFILE 'path/to/file.csv'
INTO TABLE table_name
CHARACTER SET utf8
FIELDS TERMINATED BY ',' 
ENCLOSED BY '"'
ESCAPED BY '\'
LINES TERMINATED BY '
'
IGNORE 1 ROWS;

2. Problem: After importing the data, Chinese characters are displayed as question marks (?)
   Solution: This This is usually caused by a mismatch between the database character set and the data file character set. You can use the following code to solve this problem:

ALTER TABLE table_name MODIFY column_name VARCHAR(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;

3. Problem: After importing data, some special characters are displayed as garbled characters.
   Solution: This may be caused by an encoding issue in the Excel file. You can try to modify the encoding of the Excel file to UTF-8 and then import it into the database again.
4. Problem: After importing data, the date format is displayed as garbled characters.
   Solution: When importing date data, make sure that the date field in the database table is of the correct type, such as DATE or DATETIME, and that the format of the date in the Excel file is consistent with the format in the database.

ALTER TABLE table_name MODIFY date_column DATE;

5. Problem: After importing data, the number format is displayed as garbled characters.
   Solution: This is usually caused by incorrect field types in the database table. Make sure that the field type of the database table matches the data type in the Excel file, such as INT, DECIMAL, etc.

These are some common garbled problems encountered when importing data and their solutions. Depending on the specific situation, readers can choose the appropriate method to solve the problem of garbled characters. At the same time, you also need to pay attention to whether the file format and encoding format of the imported data are correct to ensure that the data can be displayed correctly after being imported into the database.

Summary:
When importing Excel data into the Mysql database, garbled characters are a common challenge. This article summarizes common garbled code problems and provides corresponding solutions. By following the correct character set and encoding settings, and making appropriate adjustments to database tables and fields, you can solve the problem of garbled characters when importing data and ensure that the data is displayed correctly in the database. We hope that readers can use these solutions to solve the garbled code problems encountered when importing data and improve work efficiency.

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