Posts - Page 45 (page 45)
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4 min readIn Oracle, you can escape special characters by using the backslash () character. When you want to include a special character in a string, you can precede the special character with a backslash to tell Oracle to treat it as a literal character rather than as part of the syntax. For example, if you want to include a single quote (') in a string, you can escape it by writing it as follows: 'It's a beautiful day'.
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9 min readTo improve an update query in Oracle, you can consider several strategies. Firstly, make sure you are updating only the necessary columns and rows by using a WHERE clause to filter the records that need to be updated. Additionally, you can optimize the query by adding appropriate indexes to the columns involved in the WHERE clause for faster retrieval of data. It is also beneficial to avoid using functions or complex expressions in the update statement as they can slow down the query.
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6 min readTo create hook modules for PyInstaller, you can start by creating a new Python file with the naming convention "hook-module_name.py" in the hooks directory of your PyInstaller installation. In this file, you can define the hooks for specific third-party packages or modules that need to be included in the bundled executable.
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4 min readTo get variables of any package in Oracle, you can use the USER_ARGUMENTS view in the ALL_ARGUMENTS or DBA_ARGUMENTS views. These views provide information about the parameters and variables of stored procedures, functions, and packages in the database. You can query these views to retrieve details such as the data type, length, and mode of the variables within a specific package. By using SQL queries on these views, you can easily access and retrieve the variables of any package in Oracle.
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7 min readTo get pubsub to work with pyinstaller, you need to ensure that the pubsub library is included in the packaged executable file created by pyinstaller. This can be achieved by explicitly specifying the pubsub package as a hidden import in the pyinstaller command line. You can do this by adding the flag "--hidden-import pubsub" when running the pyinstaller command.
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3 min readTo remove or exclude modules and files from PyInstaller, you can use the "--exclude-module" and "--exclude" options when running PyInstaller from the command line. These options allow you to specify which modules or files you want to exclude from the final packaged executable.For example, to exclude a specific module, you can use the "--exclude-module" option followed by the module name. This will prevent PyInstaller from including that module in the final executable.
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4 min readTo limit the count of duplicate rows in Oracle, you can use the SQL SELECT statement along with the DISTINCT keyword to only retrieve unique rows from a table. You can also use the GROUP BY clause along with aggregate functions such as COUNT to identify and limit the count of duplicate rows based on specific columns.
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7 min readTo bundle .jar files with PyInstaller, you first need to convert the .jar file to a .py file using a tool like JD-GUI or CFR. Once you have the .py file, you can include it in your PyInstaller project by adding it to the list of files in the spec file or using the --add-data flag when running PyInstaller.Make sure to also include any necessary dependencies or resources that the .jar file relies on. You can specify these files in the spec file or use the --add-data flag as well.After adding the .
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3 min readTo get PyInstaller to include imported .py files, you can use the --add-data flag when running PyInstaller. This flag allows you to specify additional files or directories to include in the bundled executable. You can use wildcards to include all files with a certain extension or in a specific directory. By using this flag, you can ensure that all imported .py files are included in the final executable generated by PyInstaller.
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3 min readTo hide the python console window in PyInstaller, you can use the "windowed" option when running the PyInstaller command. This option will prevent the console window from appearing when running the executable file generated by PyInstaller. Simply add "--windowed" to your PyInstaller command to achieve this. This will allow you to run your Python application without displaying the console window to the user.
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4 min readTo run PyInstaller correctly on Cygwin, you will first need to install PyInstaller using the Python package manager pip. Make sure to install it for the Python version you are using on Cygwin.Next, navigate to the directory where your Python script is located using the Cygwin terminal. Run the PyInstaller command with the path to your Python script as an argument. PyInstaller will then analyze your script and create a standalone executable file that contains all the necessary dependencies.
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6 min readTo use pyinstaller in a subprocess in Windows, you can first create a subprocess using the subprocess module in Python. You can use the subprocess.Popen() function to create a new process and pass in the path to the pyinstaller executable as an argument. You can then use the communicate() method to interact with the subprocess and pass in the necessary arguments such as the path to the Python script you want to bundle. Finally, you can wait for the process to finish using the wait() method.