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https://stackoverflow.com/questions/704194/how-to-hash-passwords-in-mysql
How to hash passwords in MySQL?
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18edited Apr 1, 2009 at 19:54

UPDATE table SET Password = MD5(Password)
I will say though that MD5 isn't a very good level of encryption and you should consider something stronger such as ENCRYPT with a custom salt. Read about it here
EDIT: Looks like the original question changed. Here's the altered query to accomodate

UPDATE table SET Password = MD5(Password) WHERE ID!=[specified index]
EDIT: Worth noting
MD5 Encryption Hacked
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MySQL
https://dev.mysql.com/doc/refman/5.7/en/password-hashing.html
MySQL :: MySQL 5.7 Reference Manual :: 6.1.2.4 Password …
WEBThe 4.1 Hashing Method. MySQL 4.1 introduced password hashing that provided better security and reduced the risk of passwords being intercepted. There were several …
- MySQL :: MySQL 8.3 Refer…
  MySQL 8.3 also supports a variant of HASH partitioning known as linear hashing …
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Stack Overflow
https://stackoverflow.com/questions/704194
encryption - How to hash passwords in MySQL? - Stack Overflow
WEBApr 1, 2009 · Hash Functions in MySQL. There are a lot more hash functions than MD5 to use for storing passwords in you MySQL database. You can find a list of them on …
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UPDATE table SET Password = MD5(Password) I will say though that MD5 isn't a very good level of encryption and you should consider something stron...
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Hash Functions in MySQL There are a lot more hash functions than MD5 to use for storing passwords in you MySQL database. You can find a list of th...
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When hashing passwords, do not forget to salt them, so that same passwords do not yield same hashes: SET @salt := CONV(FLOOR(RAND() * 0x100000000),...
5
Concerning you edit: do you have an ID or username that identifies this row? UPDATE mytable SET password = MD5(password) WHERE id <> 123
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Edited in response to edit in OP. UPDATE userTable SET password = MD5(password) WHERE NOT (<criteria to identify row to exclude>)
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I think it is a little bit more update SET PASSWORD FOR 'existinguser'@'localhost' = PASSWORD('newpass'); or UPDATE user SET password = PASSWORD(...
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hash() function in mysql version 8.0 Sep 17, 2018
mysql - What data type to use for hashed password field and what length ... Oct 28, 2008
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https://dev.mysql.com/doc/refman/8.0/en/encryption-functions.html
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TechOnTheNet
https://www.techonthenet.com/mysql/functions/password.php
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What is password hashing in MySQL?Password hashing in MySQL refers to the process of generating hash values for passwords during authentication or when a client invokes the PASSWORD() function or uses a password-generating statement to set or change a password. The server checks hash values during authentication. MySQL's password hashing methods have the following history.
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How to use older hashing techniques in MySQL?To use older hashing techniques for passwords in MySQL, use the OLD_PASSWORD function. The OLD_PASSWORD function is used to create an encrypted/hashed password using older hashing techniques. A plaintext password string is the source for this. The PASSWORD function will return NULL if the string is NULL. The PASSWORD function performs encryption one-way.
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What are the functions of hashing in MySQL?Different functions of hashing are used in MySQL; these are the following: md5 is a function that takes data 128-bit checksum and returns it as a string of 32 hex digits. First, we create a table clients in our database and two fields of that table with the datatype varchar. We insert some values and create a hash password using md5.
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What password hashing mechanisms does MySQL 8 offer?The password hashing mechanisms offered by MySQL 8 include native MySQL password hashing, SHA-256 password hashing, SHA-2 password hashing, and MySQL SHA-256 password hashing. These safeguards can be used to secure user credentials stored in the database and protect them from being compromised.
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WEBFeb 15, 2024 · If you have no idea how to store a password in the MySQL database, this is the right place. In this guide, you’ll be able to learn how to store hash passwords in …
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PlanetScale
https://planetscale.com/blog/generated-hash-columns-in-mysql
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https://www.slingacademy.com/article/using-hash...
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https://www.mysqltutor.com/mysql-sha2
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GeeksForGeeks
https://www.geeksforgeeks.org/hashing-in-dbms
Hashing in DBMS - GeeksforGeeks
WEBOct 31, 2023 · The hashing technique utilizes an auxiliary hash table to store the data records using a hash function. There are 2 key components in hashing: Hash Table: A …
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VBForums
https://www.vbforums.com/showthread.php?905056...
[RESOLVED] Hashing Mysql example MySQL gives you. Like to …
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https://www.osradar.com/password-hashing-mysql-mariadb
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Stack Overflow
https://stackoverflow.com/questions/12612279
mysql - Hashing an entire column using sha512 - Stack Overflow
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squash.io
https://www.squash.io/tutorial-on-database-sharding-in-mysql
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Windows 11 Forum
https://www.elevenforum.com/t/mysql-password...
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Stack Overflow
https://stackoverflow.com/questions/4890793
MySQL database for hashes - Stack Overflow
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GeeksForGeeks
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