Oracle stored procedure is a precompiled PL/SQL code block that contains a set of SQL statements to be executed. Stored procedures can be used to process or manipulate data in a database, or they can be used to implement business logic or application functions.
In Oracle database, the calling of stored procedures can be implemented in the following ways.
- Using SQL command line tools
Using SQL command line tools (such as SQL*Plus), you can call stored procedures through the CALL statement. The syntax format of the CALL statement is:
CALL 存储过程名(参数1, 参数2, ...);
Among them, the stored procedure name refers to the name of the stored procedure to be called, and parameter 1, parameter 2, etc. are the input parameters required by the stored procedure. If the stored procedure has no input parameters, the parameter list can be omitted.
For example, calling a stored procedure named "my_proc" requires two input parameters, and its syntax format is:
CALL my_proc('参数1值', '参数2值');
- Using PL/SQL block
Stored procedures can also be called using PL/SQL blocks. PL/SQL blocks are a way of writing and executing PL/SQL code, similar to functions or subroutines in other programming languages. Within a PL/SQL block, you can use BEGIN and END blocks to define the code to be executed, as well as the associated input and output parameters.
For example, the following is a simple PL/SQL block for calling a stored procedure named "my_proc":
DECLARE 参数1 VARCHAR2(50) := '参数1值'; 参数2 VARCHAR2(50) := '参数2值'; BEGIN my_proc(参数1, 参数2); END;
Among them, the DECLARE keyword is used to declare variables, parameters 1 and Parameter 2 is the variable name of the input parameter, := is used to assign an initial value to the variable, and my_proc is the name of the stored procedure to be called.
- Using Java program
In a Java program, you can use the JDBC API to call Oracle stored procedures. JDBC provides a CallableStatement class for calling stored procedures. You can pass the parameters of the stored procedure to the CallableStatement object and call it together with the stored procedure during execution.
For example, the following is a sample program for calling a stored procedure and printing the results:
import java.sql.*; public class CallStoredProcedure { public static void main(String[] args) throws Exception { String driverName = "oracle.jdbc.driver.OracleDriver"; String connectionString = "jdbc:oracle:thin:@//localhost:1521/orcl"; String userName = "USERNAME"; String password = "PASSWORD"; String storedProcedure = "my_proc"; String param1 = "参数1值"; String param2 = "参数2值"; Class.forName(driverName); Connection con = DriverManager.getConnection(connectionString, userName, password); CallableStatement cst = con.prepareCall("{call " + storedProcedure + "(?,?)}"); cst.setString(1, param1); cst.setString(2, param2); cst.execute(); ResultSet rs = cst.getResultSet(); while (rs.next()) { // 处理结果集 } cst.close(); con.close(); } }
Among them, driverName and connectionString are the driver and connection characters required when JDBC connects to the Oracle database The string, userName and password are the database login name and password. storedProcedure is the name of the stored procedure to be called, and param1 and param2 are the values of the input parameters.
In short, Oracle stored procedures can be called in a variety of ways, including SQL command line tools, PL/SQL blocks, and Java programs. In practical applications, we can choose the appropriate way to call stored procedures based on specific needs and environments to better complete the tasks of data processing and logic implementation.
The above is the detailed content of How to call oracle stored procedure. For more information, please follow other related articles on the PHP Chinese website!

Oracle software applications in the real world include e-commerce platforms and manufacturing. 1) On e-commerce platforms, OracleDatabase is used to store and query user information. 2) In manufacturing, OracleE-BusinessSuite is used to optimize inventory and production planning.

The reason why Oracle software shines in multiple fields is its powerful application and customized solutions. 1) Oracle provides comprehensive solutions from database management to ERP, CRM, SCM, 2) its solutions can be customized according to industry characteristics such as finance, medical care, manufacturing, etc. 3) Successful cases include Citibank, Mayo Clinic and Toyota, 4) The advantages lie in comprehensiveness, customization and scalability, but challenges include complexity, cost and integration issues.

Choosing MySQL or Oracle depends on project requirements: 1. MySQL is suitable for small and medium-sized applications and Internet projects because of its open source, free and ease of use; 2. Oracle is suitable for core business systems of large enterprises because of its powerful, stable and advanced functions, but at a high cost.

Oracle's product ecosystem includes databases, middleware and cloud services. 1. OracleDatabase is its core product, supporting efficient data storage and management. 2. Middleware such as OracleWebLogicServer connects to different systems. 3. OracleCloud provides a complete set of cloud computing solutions.

MySQL and Oracle each have advantages in performance, scalability, and security. 1) Performance: MySQL is suitable for read operations and high concurrency, and Oracle is good at complex queries and big data processing. 2) Scalability: MySQL extends through master-slave replication and sharding, and Oracle uses RAC to provide high availability and load balancing. 3) Security: MySQL provides fine-grained permission control, while Oracle has more comprehensive security functions and automation tools.

Oracle is called the "Powerhouse" of database management because of its high performance, reliability and security. 1. Oracle is a relational database management system that supports multiple operating systems. 2. It provides a powerful data management platform with scalability, security and high availability. 3. Oracle's working principles include data storage, query processing and transaction management, and supports performance optimization technologies such as indexing, partitioning and caching. 4. Examples of usage include creating tables, inserting data, and writing stored procedures. 5. Performance optimization strategies include index optimization, partition table, cache management and query optimization.

Oracleoffersacomprehensivesuiteofproductsandservicesincludingdatabasemanagement,cloudcomputing,enterprisesoftware,andhardwaresolutions.1)OracleDatabasesupportsvariousdatamodelswithefficientmanagementfeatures.2)OracleCloudInfrastructure(OCI)providesro

The development history of Oracle software from database to cloud computing includes: 1. Originated in 1977, it initially focused on relational database management system (RDBMS), and quickly became the first choice for enterprise-level applications; 2. Expand to middleware, development tools and ERP systems to form a complete set of enterprise solutions; 3. Oracle database supports SQL, providing high performance and scalability, suitable for small to large enterprise systems; 4. The rise of cloud computing services further expands Oracle's product line to meet all aspects of enterprise IT needs.


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Atom editor mac version download
The most popular open source editor

SublimeText3 Linux new version
SublimeText3 Linux latest version

mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

Zend Studio 13.0.1
Powerful PHP integrated development environment

SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.