A query’s projection can only have one instance of a given name. As your WHERE clause shows, you have several tables with a column called ID. Because you are selecting * your projection will have several columns called ID. Or it would have were it not for the compiler hurling ORA-00918. The solution is quite simple: you … Read more
I use SQL developer and i made a connection to my database with the system user, after I created a user and made a another connection with that user with all needed privileges. But when I try to proceed following I get the SQL Error ORA-00942 table or view does not exist.:
Single quotes are escaped by doubling them up, just as you’ve shown us in your example. The following SQL illustrates this functionality. I tested it on SQL Server 2008: Results
From SQL Server 2016 you can just use On previous versions you can use You could also consider truncating the table instead rather than dropping and recreating.
It should be as simple as running this: If the dump is of a single database you may have to add a line at the top of the file: If it was a dump of many databases, the use statements are already in there. To run these commands, open up a command prompt (in Windows) … Read more
On Mac OS X v10.6 (Snow Leopard), starting MySQL gives the following error: The server quit without updating PID file File my.cnf log-error=/var/log/mysqld.log pid-file=/var/run/mysqld/mysqld.pid
Looks like the mysql server is not started. Look to the official documentation of MySQL how you can start a service under windows. Install the server as a service using this command: C:> “C:\Program Files\MySQL\MySQL Server 5.5\bin\mysqld” –install
To find the specific error run this: And look in the LATEST FOREIGN KEY ERROR section. The data type for the child column must match the parent column exactly. For example, since medicalhistory.MedicalHistoryID is an INT, Patient.MedicalHistory also needs to be an INT, not a SMALLINT. Also, you should run the query set foreign_key_checks=0 before running the DDL so you can create the tables in an … Read more
To rename a table in SQL Server, use the sp_rename command:
You can find the codes in the DB2 Information Center. Here’s a definition of the -302 from the z/OS Information Center: THE VALUE OF INPUT VARIABLE OR PARAMETER NUMBER position-number IS INVALID OR TOO LARGE FOR THE TARGET COLUMN OR THE TARGET VALUE On Linux/Unix/Windows DB2, you’ll look under SQL Messages to find your error message. If the code is positive, … Read more