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How Can I Efficiently Convert BLOB to TEXT Data in MySQL?

Barbara Streisand
Release: 2025-01-25 01:37:09
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How Can I Efficiently Convert BLOB to TEXT Data in MySQL?

The direct conversion method from blob to Text in mysql

Many users store text data as BLOB in MySQL, but in order to facilitate processing, this data usually needs to be converted to Text. The following is the direct method of completing this conversion without interrupt data:

Use the convert () function instead of select:

Do not use conventional select query, but modify it to use the Convert () function. This function converts the blob data to Text format to make it easier to use.

grammar:

Example:

<code class="language-sql">SELECT CONVERT(column USING utf8) FROM table_name;</code>
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Suppose you have a table called "My_table", which contains a column called "My_text", which contains Blob data. To use the UTF-8 encoding to convert this data to Text, please use the following inquiries:

This query will retrieve BLOB data, convert it to UTF-8-encoded text, and display it as the result.

Note:

<code class="language-sql">SELECT CONVERT(`my_text` USING utf8) FROM `my_table`;</code>
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"UTF8" parameter specify the encoding required for the conversion text. You can use other supported codes as needed.

The conversion text is displayed in the output, but it will not modify the actual data stored in the database. If you want to convert data permanently, you can use Update or Alter Table statements.

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