Assuming you mean that you are trying to use the source command in order to execute SQL statements from a text file, the error number given appears to be passed through from the POSIX layer. Therefore, using this resource, we can deduce that the error value of 2 means “no such file or directory”. In short, you got the path … Read more
If you’re having issues compiling the binary extension, or on a platform where you cant, you can try using the pure python PyMySQL bindings. Simply pip install pymysql and switch your SQLAlchemy URI to start like this: There are some other drivers you could also try.
A simple solution would be doing something like this:
Since the suggestion of a loop implies the request for a procedure type solution. Here is mine. Any query which works on any single record taken from a table can be wrapped in a procedure to make it run through each row of a table like so: First delete any existing procedure with the same … Read more
You are using a transaction; autocommit does not disable transactions, it just makes them automatically commit at the end of the statement. What is happening is, some other thread is holding a record lock on some record (you’re updating every record in the table!) for too long, and your thread is being timed out. You … Read more
I found the answer. The problem was that I have to precede the table name with the schema name. i.e, the command should be: Thanks all.
You cannot use IF control block OUTSIDE of functions. So that affects both of your queries. Turn the EXISTS clause into a subquery instead within an IF function In fact, booleans are returned as 1 or 0
You need to tell MySQL which database to use: before you create a table. In case the database does not exist, you need to create it as: followed by:
The problem lies in: The prepare() method can return false and you should check for that. As for why it returns false, perhaps the table name or column names (in SELECT or WHERE clause) are not correct? Also, consider use of something like $this->db->conn->error_list to examine errors that occurred parsing the SQL. (I’ll occasionally echo the actual SQL statement strings and paste into phpMyAdmin to test, … Read more
What you do here is called a JOIN (although you do it implicitly because you select from multiple tables). This means, if you didn’t put any conditions in your WHERE clause, you had all combinations of those tables. Only with your condition you restrict your join to those rows where the drink id matches. But there are still X … Read more