Description. DBException is thrown when one of the database specific classes such as DBView or DBStmt encounters an error. An exception of this type stores strings representing which method the exception was thrown in and a message describing what error occurred. What are database exceptions? An exception is a PL/SQL error that is raised during program execution, either implicitly by …
(If you’re using a mouse, point to the lower-right corner of the screen, move the mouse pointer up, and then click Search.) Enter File History settings in the search box, and then select File History settings. Select Select a drive, and choose the network or external drive you want to use. Turn on File History. How do I view file …
Availability Logs: track system performance, uptime, and availability. Resource Logs: provide information about connectivity issues and capacity limits. Threat Logs: contain information about system, file, or application traffic that matches a predefined security profile within a firewall. How many types of log are there? There are three types of log files: 1. Request log files that document the execution of …
On Unix, the mysql client writes a record of executed statements to a history file. By default, this file is named . mysql_history and is created in your home directory. To specify a different file, set the value of the MYSQL_HISTFILE environment variable. Can we see history in MySQL? Code which you issue in MySQL Shell is stored in the …
You can read a LOG file with any text editor, like Windows Notepad. You might be able to open one in your web browser, too. Just drag it directly into the browser window, or use the Ctrl+O keyboard shortcut to open a dialog box to browse for the file. How do I view a log file in command prompt? Open …
The general query log is a general record of what mysqld is doing. The server writes information to this log when clients connect or disconnect, and it logs each SQL statement received from clients. What is MySQL slow query log? The slow query log consists of SQL statements that take more than long_query_time seconds to execute and require at least …
Typically, MySQL will store data in the default directory of /var/lib/mysql. Where are MySQL files stored Linux? MySQL uses /var/lib/mysql directory as default data directory for Linux based systems. Is MySQL database stored locally? Sure. But where it is depends on the package you have chosen to install MySQL. Have a look at this SO answer for different options. /usr/local/mysql/ …
We can display error message in case of an error generated by MySQL query. This meaning full error message gives idea one the problem or bugs in the script. We can print the error message by using mysql function mysql_error(). This function returns the error message associated with most recently executed query. What does MySQL error mean? Lost connection to …
To trap non-fatal errors in a called stored procedure, the called procedure must have some way to communicate back to the calling procedure that an error has occurred. To do this, pass a value back via the RETURN statement, or use an OUTPUT parameter. How do you handle error conditions while writing a stored procedure or accessing the stored procedure …
Handlers classes are used to Handle the execution of triggers. If you are working on custom application development on force.com or customizing salesforce to do event-driven updates, you will end up writing quite a few triggers and in some cases more than one trigger on the same object. Why is handler used in Java? A Handler object takes log messages …