Category: PL/SQL

The UTL_FILE.FOPEN_NCHAR function in Oracle PL/SQL is used to open a file for reading or writing in Unicode (NCHAR) mode. This function is part of the UTL_FILE package, which allows PL/SQL programs to read from and write to files stored in the operating system’s file system. The FOPEN_NCHAR function is specifically designed to handle multibyte…(Continue Reading)

The UTL_FILE.FOPEN function is part of Oracle’s UTL_FILE package, which allows PL/SQL programs to interact with operating system files—reading from and writing to files located on the database server. This is particularly useful for handling file I/O operations like creating, reading, and writing text files directly from PL/SQL. Syntax UTL_FILE.FOPEN ( location IN VARCHAR2, filename…(Continue Reading)

The UTL_FILE.FCLOSE procedure is part of Oracle’s UTL_FILE package, which is used for interacting with operating system files from within PL/SQL. Specifically, the UTL_FILE.FCLOSE procedure is used to close a file that was previously opened using UTL_FILE.FOPEN or UTL_FILE.FOPEN_NCHAR. Purpose The UTL_FILE.FCLOSE procedure ensures that the file handle is released and that all buffered data…(Continue Reading)

Oracle PL/SQL (Procedural Language/Structured Query Language) is an extension of SQL that enables procedural programming within the Oracle database. One of the most powerful and widely used features in PL/SQL is the UTL_FILE package, which allows PL/SQL programs to interact with operating system files. The UTL_FILE package facilitates the reading and writing of files on…(Continue Reading)

Oracle’s DBMS_XPLAN package is a utility designed to provide detailed and organized insights into the execution plans of SQL queries. It is a fundamental tool for database administrators (DBAs) and developers alike, offering deep visibility into how the Oracle Database executes SQL statements. Understanding and utilizing this package is critical for optimizing queries, managing system…(Continue Reading)