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Out of range value for column 'column_name' at row 1 - How to solve MySQL error: data exceeds the column range of row 1

王林
王林Original
2023-10-05 09:21:372260browse

Out of range value for column \'column_name\' at row 1 - 如何解决MySQL报错:数据超出行1的列范围

How to solve MySQL error: The data exceeds the column range of row 1, specific code examples are needed

In the process of using MySQL for database operations, sometimes you will encounter errors Message: Out of range value for column 'column_name' at row 1, that is, the data exceeds the column range of row 1. This error usually occurs when inserting or updating data and the range of values ​​exceeds the maximum or minimum value of the column defined by the table. This article explains how to solve this problem and provides some specific code examples.

  1. Determine the cause of the error
    First, we need to determine the cause of the error. You can find the cause of the error by performing the following steps:

1.1 Check table definition
Confirm how the columns of the table are defined, including data type, length, constraints, etc. You can use the DESCRIBE command to view the structure of the table.

1.2 Check the data to be inserted or updated
Make sure that the data to be inserted or updated conforms to the range defined by the table. For example, if a column is defined as type TINYINT, then its range is -128 to 127. If the value to be inserted exceeds this range, a column range out of row 1 error will occur.

  1. How to solve the error
    Once the cause of the error is determined, appropriate measures can be taken to solve the problem. Here are some common solutions:

2.1 Modify the table definition
If the table definition does not match the data to be inserted or updated, consider modifying the table definition. For example, if a column is defined as a TINYINT type, but the value to be inserted exceeds its range, you can change the column's data type to SMALLINT or INT.

ALTER TABLE table_name
MODIFY COLUMN column_name data_type;

2.2 Modify the data to be inserted or updated
If the data to be inserted or updated exceeds the scope of the table definition, you can consider change the data. For example, if you want to insert a value that is outside the range of the INT type, you can change it to a value within the appropriate range.

  1. Code Examples
    The following are some specific code examples to resolve the data out of column range error for row 1.

3.1 Example of modifying the table definition:

ALTER TABLE users
MODIFY COLUMN age SMALLINT;

This example changes the data type of the "age" column in the table "users" from TINYINT to SMALLINT.

3.2 Example of modifying the data to be inserted or updated:

INSERT INTO employees (id, name, salary)
VALUES (1, 'John Doe', 999999999);

This example demonstrates how to insert a value that exceeds the range of the INT type. You can change the data type of the "salary" column to BIGINT, or change the inserted value to a value within the appropriate range.

Summary:
By examining the table definition and the data to be inserted or updated, we can determine the cause of the data out of row 1 column range error. Depending on the cause of the error, we can take appropriate actions to solve the problem, including modifying the table definition or modifying the data to be inserted or updated. The code example provided above can help you better understand how to resolve this error. Hope this article helps you!

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