“Not unique table/alias” in MySQL

You are joining the same table 2 times and hence you need to provide the unique alias name. However looks like you are looking for parts table and hence need to join that table For better readability you can always give some short alias name something as

What does SQL Select symbol || mean?

|| represents string concatenation. Unfortunately, string concatenation is not completely portable across all sql dialects: ansi sql: || (infix operator) mysql: concat ( vararg function ). caution: || means ‘logical or’ (It’s configurable, however; thanks to @hvd for pointing that out) oracle: || (infix operator), concat ( caution: function of arity 2 only ! ) postgres: || (infix operator) sql server: + (infix operator), concat ( vararg function ) sqlite: || (infix operator) hopefully the confusion is complete … Read more

ERROR 1064 (42000) in MySQL

I am trying to populate a new MySQL empty database with a db dump created from MS SQL Azure database, and I get the following error ERROR 1064 (42000) at line 1: You have an error in your SQL syntax; Check the manual that corresponds to your MySQL server version for the right syntax to … Read more

How to set a timer in mysql

Suppose the current date is 20141110 10:00pm , I would like to let mysql to update a field and then dump few fields into a file while the date is 20141201 10:00pm how to implement it? What I know is to use event, but this seems to be used under some interval time. like every … Read more

MySQL ERROR 1045 (28000): Access denied for user ‘bill’@’localhost’ (using password: YES)

You probably have an anonymous user ”@’localhost’ or ”@’127.0.0.1′. As per the manual: When multiple matches are possible, the server must determine which of them to use. It resolves this issue as follows: (…) When a client attempts to connect, the server looks through the rows [of table mysql.user] in sorted order. The server uses the first row that matches the … Read more