Table of Contents
Is there a dynamic statement in oracle?
Home Database Oracle Are there dynamic statements in oracle?

Are there dynamic statements in oracle?

Jun 10, 2022 am 11:28 AM
oracle

There are dynamic statements in Oracle; dynamic statements refer to SQL statements that are uncertain at compile time. The compiler does not process the dynamic statement part, but only dynamically creates statements and syntaxes the statements when the program is running. Analyze and execute the statement, the syntax is "EXECUTE IMMEDIATE dynamic SQL statement string INTO clause USING clause".

Are there dynamic statements in oracle?

The operating environment of this tutorial: Windows 10 system, Oracle version 12c, Dell G3 computer.

Is there a dynamic statement in oracle?

Is there a dynamic statement in oracle?

The so-called dynamic SQL refers to the SQL statement when the PL/SQL block is compiled. Undefined, such as performing different operations based on different user input parameters. The compiler does not process the dynamic statement part, but only creates the statement dynamically when the program is running, performs syntax analysis on the statement and executes the statement. Dynamic SQL in ORACLE can be executed through local dynamic SQL commands or through the DBMS_SQL package.

Usually in development, simple local dynamic SQL can solve the problem. I will use other methods to achieve it below. The syntax for executing local dynamic SQL is given:

 EXECUTE IMMEDIATE dynamic_sql_string [INTO define_variable_list] [USING bind_argument_list];

where: dynamic_sql_string is the dynamic SQL statement string INTO clause is used to accept the record value selected by the SELECT statement. The USING clause is used to accept bound input parameter variables.

SQL dynamic statements are SQL statements generated by programs or stored procedures. The characteristic of such statements is that they cannot be simply run. Because it is not standard and contains changing components, ORACLE provides a mode for executing dynamic SQL statements:

EXECUTE IMMEDIATE

The meaning of this sentence is to execute immediately without first To perform syntax checking, logical errors may occur during execution, which will be handled through error interrupts.

The example is as follows:

Are there dynamic statements in oracle?

## This code first executes a created dynamic SQL, and then executes the SELECT statement with parameters. The EXECUTE IMMEDIATE statement can only be used to process SQL statements that return a single row or return nothing. To process dynamic SQL that returns multiple rows, the OPEN...FOR statement of the REF cursor must be used.

Recommended tutorial: "

Oracle Video Tutorial"

The above is the detailed content of Are there dynamic statements in oracle?. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undress AI Tool

Undress AI Tool

Undress images for free

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

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

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

How to uninstall MySQL and clean residual files How to uninstall MySQL and clean residual files Apr 29, 2025 pm 04:03 PM

To safely and thoroughly uninstall MySQL and clean all residual files, follow the following steps: 1. Stop MySQL service; 2. Uninstall MySQL packages; 3. Clean configuration files and data directories; 4. Verify that the uninstallation is thorough.

Oracle's Role in the Business World Oracle's Role in the Business World Apr 23, 2025 am 12:01 AM

Oracle is not only a database company, but also a leader in cloud computing and ERP systems. 1. Oracle provides comprehensive solutions from database to cloud services and ERP systems. 2. OracleCloud challenges AWS and Azure, providing IaaS, PaaS and SaaS services. 3. Oracle's ERP systems such as E-BusinessSuite and FusionApplications help enterprises optimize operations.

MongoDB vs. Oracle: Understanding Key Differences MongoDB vs. Oracle: Understanding Key Differences Apr 16, 2025 am 12:01 AM

MongoDB is suitable for handling large-scale unstructured data, and Oracle is suitable for enterprise-level applications that require transaction consistency. 1.MongoDB provides flexibility and high performance, suitable for processing user behavior data. 2. Oracle is known for its stability and powerful functions and is suitable for financial systems. 3.MongoDB uses document models, and Oracle uses relational models. 4.MongoDB is suitable for social media applications, while Oracle is suitable for enterprise-level applications.

MongoDB vs. Oracle: Choosing the Right Database for Your Needs MongoDB vs. Oracle: Choosing the Right Database for Your Needs Apr 22, 2025 am 12:10 AM

MongoDB is suitable for unstructured data and high scalability requirements, while Oracle is suitable for scenarios that require strict data consistency. 1.MongoDB flexibly stores data in different structures, suitable for social media and the Internet of Things. 2. Oracle structured data model ensures data integrity and is suitable for financial transactions. 3.MongoDB scales horizontally through shards, and Oracle scales vertically through RAC. 4.MongoDB has low maintenance costs, while Oracle has high maintenance costs but is fully supported.

What software is better for yi framework? Recommended software for yi framework What software is better for yi framework? Recommended software for yi framework Apr 18, 2025 pm 11:03 PM

Abstract of the first paragraph of the article: When choosing software to develop Yi framework applications, multiple factors need to be considered. While native mobile application development tools such as XCode and Android Studio can provide strong control and flexibility, cross-platform frameworks such as React Native and Flutter are becoming increasingly popular with the benefits of being able to deploy to multiple platforms at once. For developers new to mobile development, low-code or no-code platforms such as AppSheet and Glide can quickly and easily build applications. Additionally, cloud service providers such as AWS Amplify and Firebase provide comprehensive tools

MySQL vs. Oracle: Licensing, Features, and Benefits MySQL vs. Oracle: Licensing, Features, and Benefits May 08, 2025 am 12:05 AM

The main difference between MySQL and Oracle is licenses, features, and advantages. 1. License: MySQL provides a GPL license for free use, and Oracle adopts a proprietary license, which is expensive. 2. Function: MySQL has simple functions and is suitable for web applications and small and medium-sized enterprises. Oracle has powerful functions and is suitable for large-scale data and complex businesses. 3. Advantages: MySQL is open source free, suitable for startups, and Oracle is reliable in performance, suitable for large enterprises.

MySQL and Oracle: Exploring Performance and Scalability MySQL and Oracle: Exploring Performance and Scalability Apr 29, 2025 am 12:12 AM

The difference between MySQL and Oracle in performance and scalability is: 1. MySQL performs better on small to medium-sized data sets, suitable for fast scaling and efficient reading and writing; 2. Oracle has more advantages in handling large data sets and complex queries, suitable for high availability and complex business logic. MySQL extends through master-slave replication and sharding technologies, while Oracle achieves high availability and scalability through RAC.

MySQL vs. Oracle: Understanding Licensing and Cost MySQL vs. Oracle: Understanding Licensing and Cost May 03, 2025 am 12:19 AM

MySQL uses GPL and commercial licenses for small and open source projects; Oracle uses commercial licenses for enterprises that require high performance. MySQL's GPL license is free, and commercial licenses require payment; Oracle license fees are calculated based on processors or users, and the cost is relatively high.

See all articles