Is there a Profiler equivalent for MySql?
Something cool that is in version 5.0.37 of the community server is MySQL’s new profiler. This may give you what info you are looking for.
Database
ORA-20002: YOU ARE NOT ALLOWED TO CHANGE THE PASSWORD FOR CRITICAL SCHEMAS
The exception is being raised by a password verification function, assigned to the user via a profile. You can see the profile name and the function being applied by querying: You can then see what the function is actually doing by looking at its source, using the name identified in the previous query: From there … Read more
Get everything after and before certain character in SQL Server
If you want to get this out of your table using SQL, take a look at the following functions that will help you: SUBSTRING and CHARINDEX. You can use those to trim your entries. A possible query will look like this (where col is the name of the column that contains your image directories: Bit of an ugly beast. It … Read more
PostgreSQL visual interface similar to phpMyAdmin?
phpPgAdmin might work for you, if you’re already familiar with phpMyAdmin. Please note that development of phpPgAdmin has moved to github per this notice but the SourceForge link above is for historical / documentation purposes. But really there are dozens of tools that can do this.
MySQL delete multiple rows in one query conditions unique to each row
You were very close, you can use this: Please see this fiddle.
How can I convert a string to a float in mysql?
It turns out I was just missing DECIMAL on the CAST() description: DECIMAL[(M[,D])] Converts a value to DECIMAL data type. The optional arguments M and D specify the precision (M specifies the total number of digits) and the scale (D specifies the number of digits after the decimal point) of the decimal value. The default … Read more
Can’t create test file lower test start server mysql
I’m following this tutorial here on creating a JDBC programming. I’ve followed the steps up to the console command to start the server: I get the following error message: I’m quite new to using MySql in this way but I can see that there is no data folder in the server directory and no my.ini … Read more
SQL Server “cannot perform an aggregate function on an expression containing an aggregate or a subquery”, but Sybase can
One option is to put the subquery in a LEFT JOIN: Perhaps a better option would be to use SUM with CASE: SQL Fiddle Demo with both
What does Include() do in LINQ?
Let’s say for instance you want to get a list of all your customers: And let’s assume that each Customer object has a reference to its set of Orders, and that each Order has references to LineItems which may also reference a Product. As you can see, selecting a top-level object with many related entities … Read more
Failed building wheel for mysql-python
I want to run a Django application in PyCharm which works on MySQL DB. I am unable to connect my program to the database. When I am trying to install MySQLclient or MySQL-python I am getting the error: Failed building wheel for MySQLclient Please help me out in connecting my Django program with MySQL database.