Mysql Error 256
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of error type 256 this site About Us Learn more about Stack Overflow the company Business mysql error codes Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask error 256 linux Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Syntax error 256 in WHERE clause up vote 1 down vote favorite I am trying to update a field in my table and I keep getting this syntax error. global $conn, $strTableName; db_exec("UPDATE equipment SET EContractNum = " . $_SESSION[$strTableName."_masterkey1"] . " WHERE EContractNum = " . $values['EContractNum'], $conn); Here is the error: Error type: 256 Error Description: You have an error in your SQL syntax; check the manual that corresponds to your MYSQL server version for the right syntax to use near 'WHERE econtractnum=35867111' at line 1 I have looked at several searchs that are similair to mine but I cannot figure out what I am doing wrong. I am fairly new at this so it is probably something simple. I just cant seem to make it work. Thanks for any help. mysql share|improve this question edited Nov 16 '12 at 4:42 diEcho 29.2k1987156 asked Nov 16 '12 at 4:40 Rusty Vernon 62 Please brush up on your proper SQL escaping before you do yourself some serious harm. –tadman Nov 16 '12 at 6:40 add a comment| 1 Answer 1 active oldest votes up vote 2 down vote $_SESSION[$strTableName."_masterkey1"] is probably empty, or a string that needs to be quoted. Also, don't put the raw values of variables into queries like that. Use a framework or prepared statements. It's good for security and it would also prevent this kind of error (well, it'd turn it into a different kind of error, at least). share|improve th
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Connectors More MySQL.com Downloads Developer Zone Section Menu: Documentation Home MySQL 5.6 Reference Manual Preface and Legal Notices General Information Installing and Upgrading MySQL Tutorial MySQL Programs MySQL Server https://dev.mysql.com/doc/refman/5.6/en/sha256-authentication-plugin.html Administration Security General Security Issues Security Guidelines Keeping Passwords Secure End-User Guidelines for Password Security Administrator Guidelines for Password Security Passwords and Logging Password Hashing in MySQL Implications of Password https://github.com/mysqljs/mysql/issues/256 Hashing Changes in MySQL 4.1 for Application Programs Making MySQL Secure Against Attackers Security-Related mysqld Options and Variables How to Run MySQL as a Normal User Security Issues with mysql error LOAD DATA LOCAL Client Programming Security Guidelines The MySQL Access Privilege System Privileges Provided by MySQL Grant Tables Specifying Account Names Access Control, Stage 1: Connection Verification Access Control, Stage 2: Request Verification When Privilege Changes Take Effect Troubleshooting Problems Connecting to MySQL MySQL User Account Management User Names and Passwords Adding User Accounts Removing User Accounts Setting Account Resource mysql error 256 Limits Assigning Account Passwords Password Expiration and Sandbox Mode Pluggable Authentication Proxy Users SQL-Based MySQL Account Activity Auditing Using Secure Connections OpenSSL Versus yaSSL Building MySQL with Support for Secure Connections Secure Connection Protocols and Ciphers Configuring MySQL to Use Secure Connections Command Options for Secure Connections Creating SSL and RSA Certificates and Keys Creating SSL Certificates and Keys Using openssl Creating RSA Keys Using openssl Connecting to MySQL Remotely from Windows with SSH Security Plugins Authentication Plugins The Native Authentication Plugin The Old Native Authentication Plugin Migrating Away from Pre-4.1 Password Hashing and the mysql_old_password Plugin The SHA-256 Authentication Plugin The PAM Authentication Plugin The Windows Native Authentication Plugin The Cleartext Client-Side Authentication Plugin The Socket Peer-Credential Authentication Plugin The Test Authentication Plugin The Password Validation Plugin Password Validation Plugin Installation Password Validation Plugin Options and Variables MySQL Enterprise Audit Installing MySQL Enterprise Audit MySQL Enterprise Audit Security Considerations The Audit Log File Audit Log Logging Control Audit Log Filtering Audit Log Reference Audit Log Restrictions MySQL Enterprise Firewall MySQL Enterprise Firewall Components Installing or Uninstalling MySQ
Sign in Pricing Blog Support Search GitHub This repository Watch 424 Star 7,847 Fork 1,267 mysqljs/mysql Code Issues 89 Pull requests 18 Projects 0 Wiki Pulse Graphs New issue result type error #256 Closed windyrobin opened this Issue Jul 24, 2012 · 3 comments Projects None yet Labels None yet Milestone No milestone Assignees No one assigned 2 participants windyrobin commented Jul 24, 2012 when I query : connection.query('SELECT 1', function(err, rows, fields) { if (err) throw err; console.log('Query result: ', rows); }); the result is : [ { '1': '1' } ] but the type of value should be INTEGER ,not STRING felixge commented Jul 24, 2012 Consider the field packet send by MySQL for this: <-- FieldPacket { catalog: 'def', db: '', table: '', orgTable: '', name: '1', orgName: '', filler1: