How to clear redis data

How to clear Redis data: Use the FLUSHALL command to clear all key values. Use the FLUSHDB command to clear the key value of the currently selected database. Use SELECT to switch databases, and then use FLUSHDB to clear multiple databases. Use the DEL command to delete a specific key. Use the redis-cli tool to clear the data.

How to clear Redis data

Redis is a popular key-value store that can be cleared using the following methods:

1. Use the FLUSHALL command

<code>FLUSHALL</code> command is used to clear all keys and values ​​in Redis. It will clear all data in the database at the same time.

Syntax for executing this command:

 <code>FLUSHALL</code>

2. Use the FLUSHDB command

The <code>FLUSHDB</code> command is used to clear all keys and values ​​in the currently selected database.

Syntax for executing this command:

 <code>FLUSHDB</code>

3. Use the SELECT command to switch the database, and then use the FLUSHDB command

If you need to clear multiple databases, you can first use the SELECT command to switch to the corresponding database, and then execute the <code>FLUSHDB</code> command.

Example:

 <code>SELECT db1 FLUSHDB SELECT db2 FLUSHDB</code>

4. Delete a specific key

If you want to delete only specific keys, you can use the DEL command.

Syntax for executing this command:

 <code>DEL key1 key2 ...</code>

5. Use the redis-cli tool

You can also use the redis-cli tool to clear Redis data.

Syntax for executing this command:

 <code>redis-cli FLUSHALL</code>

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