How to use INET_ATON function in MySQL to convert IP address to integer

How to use the INET_ATON function in MySQL to convert an IP address to an integer?

In network programming, the processing and storage of IP addresses are often involved. IP addresses are usually expressed in dotted-decimal form, such as 192.168.1.1. However, for some scenarios that require efficient storage and processing of IP addresses, it may be more convenient and efficient to convert the IP address to integer form.

In the MySQL database, there is a built-in function called INET_ATON that can be used to convert an IP address to an integer. The INET_ATON function accepts an IP address in dotted decimal notation as a parameter and returns the corresponding integer value. The following is the sample code using the INET_ATON function:

SELECT INET_ATON('192.168.1.1') AS ip_integer;

In the above example, we pass the IP address 192.168.1.1 as parameter to the INET_ATON function and use the alias ip_integerDefine a field name for the query results. When executing this query, MySQL will convert the IP address to an integer and return the result.

Run the above code, the query result will be 3232235777. This integer is converted from the IP address 192.168.1.1.

In addition to converting IP addresses to integers, the INET_ATON function can also convert integers to IP addresses. At this time, we need to use the INET_NTOA function, where NTOA stands for "Number to Address".

The following is the sample code to convert an integer to an IP address using the INET_NTOA function:

SELECT INET_NTOA(3232235777) AS ip_address;

In the above example, we are passing the integer 3232235777 as a parameter to the INET_NTOA function, And use the alias ip_address to define a field name for the query results. When executing this query, MySQL will convert the integer into the corresponding IP address and return the result.

Run the above code, the query result will be 192.168.1.1. This IP address is obtained by converting the integer 3232235777.

Use the INET_ATON and INET_NTOA functions to conveniently convert between IP addresses and integers in MySQL. This can provide great convenience and convenience for some special scenarios, such as the storage and indexing of IP addresses.

However, it should be noted that the INET_ATON and INET_NTOA functions only apply to IPv4 address processing. For IPv6 addresses, MySQL provides the INET6_ATON and INET6_NTOA functions for the same purpose.

To summarize, using the INET_ATON function to convert an IP address to an integer and the INET_NTOA function to convert an integer to an IP address are convenient ways to do IP address processing in MySQL. Through the combination of these two functions, we can implement efficient storage, indexing, query and other operations in IPv4 address processing. At the same time, MySQL also provides corresponding functions for IPv6 address processing to meet a wider range of application needs.

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