-
-
Sql plus commands w3schools Learn about the SQL+ ecosystem here. SQL*Plus has its own commands and environment, and it provides access to the Oracle Database. The following SQL inserts a new record in the "Customers" table: The CREATE TABLE command creates a new table in the database. PL/SQL is one of three key programming languages embedded in the Oracle Database, along with SQL itself SQLPlus SQL*Plus is a command-line interface tool provided by Oracle Corporation for interacting with the Oracle Database. Requirements for UNION: Every SELECT statement within UNION must have the same number of columns The columns must also have similar data types The columns in every SELECT statement must also be in the same W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Below is a selection from the Customers table used in the examples: The table above contains five records (one for each customer) and seven columns (CustomerID, CustomerName, ContactName, Address, City, PostalCode, and Country). The SQL WHERE Clause The WHERE clause is used to filter records. SQL*Plus maintains system variables (also called SET command variables) to enable you to set up a particular environment for a SQL*Plus session. Insert a customer, and set the @CustomerId SQL Server has many built-in functions. A view contains rows and columns, just like a real table. The SQL OR Operator The WHERE clause can contain one or more OR operators. Start learning SQL now » Learn SQL SQL is a standard language for storing, manipulating and retrieving data in databases. SQL CREATE VIEW Statement In SQL, a view is a virtual table based on the result-set of an SQL statement. SQL+ is a natural evolution of the SQL programming language. SQL (Structured Query Language) is a standard database programming language for accessing and manipulating data in a relational database. The best Online SQL Editor to provide an easy to use and simple IDE (Integrated Development Environment) for the students and working professionals to Edit and Execute SQL Code with in your browser itself. A single INSERT statement, as a SQL command thus can insert the rows into one table or multiple tables. Free online tutorial on Oracle SQL (Structured Query Language). The following SQL creates a table called "Persons" that contains five columns: PersonID, LastName, FirstName, Address, and City: The SQL DROP TABLE Statement The DROP TABLE statement is used to drop an existing table in a database. SQL Editor With our online SQL editor, you can edit SQL statements, and view the result in your browser. The following SQL drops a database named "testDB": INSERT ALL in Oracle: To insert multiple rows, the Oracle INSERT ALL statement is used. You can change these system variables with the SET command and list them with the SHOW command. You can continue a long SQL*Plus command by typing a hyphen at the end of the line and pressing Return. Semicolon is the standard way to separate each SQL statement in database systems that allow more than one SQL statement to be executed in the same call to the server. Syntax Nov 25, 2025 · Introduction Last updated: 11/25/2025 SQL+ is a natural evolution to the SQL programming language. The UNION operator automatically removes duplicate rows from the result set. Although SQL is an ANSI/ISO standard, there are different versions of the SQL language. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. Oracle tutorial for beginner with examples. The SET command is used with UPDATE to specify which columns and values that should be updated in a table. Start learning SQL now » 6. SQL is a standard language for storing, manipulating and retrieving data in databases. The BETWEEN operator is inclusive: begin and end values are included. Start learning SQL now » Jun 6, 2024 · SQL*Plus is a command-line tool for Oracle Database that allows users to interact with the database using SQL and PL/SQL commands. Enjoy the best programming experience. By simply adding Semantic Tags to your SQL in the form of comments, you can build enterprise worthy data services in minutes. Write SQL Consider the following SQL. The menu to the right displays the database, and will reflect any changes. If you wish, you can type a space before typing the hyphen. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. The following SQL updates the first customer (CustomerID = 1) with a new ContactName and a new City: W3Schools offers free online tutorials, references and exercises in all the major languages of the web. It is a powerful language widely used in industry; To become proficient, it is necessary to become familiar with and practice it. Syntax Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more. SQL*Plus enables you to: Enter SQL*Plus commands to configure the SQL*Plus environment Startup and shutdown an Oracle database Connect to an Oracle database Enter and execute SQL commands and PL/SQL blocks Format and print query results SQL*Plus is available on several This tutorial provides an overview of the most commonly used SQL commands to create, alter, and manipulate tables and data in databases. The operations include queries of data. creating a table, adding data to tables, dropping the table, modifying the table and set permission for users. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more. You'll find valuable insights here whether you're a beginner or an expert. The SQL COUNT () Function The COUNT() function returns the number of rows that matches a specified criterion. The SQL BETWEEN Operator The BETWEEN operator selects values within a given range. Nothing out of the ordinary. Here, we will discuss the SQL*Plus commands, and understand how to use the SQL*Plus command-line argument. SQL is a Standard - BUT. Feature for feature, SQL+ is the best ORM for C# and SQL. A view is created with the CREATE W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Learn SQL SQL is a standard language for storing, manipulating and retrieving data in databases. In command-line SQL*Plus, you type a command and direct SQL*Plus to execute it by pressing the Return key. The basic syntax of an SQL statement consists of a command followed by a clause and conditions. It was developed by Oracle Corporation in the early 90's to enhance the capabilities of SQL. Start learning SQL now » W3Schools offers free online tutorials, references and exercises in all the major languages of the web. What is a Stored Procedure? A stored procedure is a prepared SQL code that you can save, so the code can be reused over and over again. SQL*Plus processes the command and re-displays the command prompt when ready for another command. Welcome to our guide on Basic SQL plus commands with examples. The SQL CREATE DATABASE Statement The CREATE DATABASE statement is used to create a new SQL database. The SQL ANY and ALL Operators The ANY and ALL operators allow you to perform a comparison between a single column value and a range of other values. If you wish, however, you can SQL*Plus commands, for formatting query results, setting options, and editing and storing SQL commands and PL/SQL blocks The manner in which you continue a command on additional lines, end a command, or execute a command differs depending on the type of command you wish to enter and run. The ALTER TABLE statement is also used to add and drop various constraints on an existing table. Home Lang Sqlplus Spool SQL Plus - SPOOL Command Table of Contents SPOOL stores query results in a file, or optionally sends the file to a printer. The SQL INSERT INTO Statement The INSERT INTO statement is used to insert new records in a table. However, to be compliant with the ANSI standard, they all support at least the major commands (such as SELECT, UPDATE, DELETE, INSERT, WHERE) in a similar manner. . This SQL tutorial series will help you learn SQL from the basics. 1 About Formatting Columns Through the SQL*Plus COLUMN command, you can change the column headings and reformat the column data in your query results. 1. It is used to extract only those records that fulfill a specified condition. Nov 12, 2025 · SQL commands are fundamental building blocks used to perform given operations on database. Start learning SQL now » Oracle plsql tutorial for beginners and professionals with examples on Basics, PL/SQL, syntax, data types, variables, constants, records, conditional statements The SQL CREATE TABLE Statement The CREATE TABLE statement is used to create a new table in a database. This reference contains string, numeric, date, conversion, and some advanced functions in SQL Server. Examples in Each Chapter With our online MySQL editor, you can edit the SQL statements, and click on a button to view the result. Start learning SQL now » SQL ALTER TABLE Statement The ALTER TABLE statement is used to add, delete, or modify columns in an existing table. It enables you to enter and execute SQL, PL/SQL, SQL*Plus and operating system commands to perform the following: Format, perform calculations on, store, and print from query results Examine table and object definitions Develop and run batch scripts PL/SQL Tutorial PL/SQL, which stands for Procedural Language extensions to the Structured Query Language (SQL). Learn SQL SQL is a standard language for storing, manipulating and retrieving data in databases. When you finish entering the command, you can press Return. It is a powerful and versatile tool widely used by database administrators, developers, and users for executing SQL statements, managing database objects, and performing various administrative tasks. Our SQL tutorial will teach you how to use SQL in: MySQL, SQL Server, MS Access, Oracle, Sybase, Informix, Postgres, and other database systems. MySQL Editor With our online MySQL editor, you can edit SQL statements, and view the result in your browser. SQL*Plus is a command-line tool that provides access to the Oracle RDBMS. In this tutorial we will use the well-known Northwind sample database (included in MS Access and MS SQL Server). DROP DATABASE The DROP DATABASE command is used is to delete an existing SQL database. You can also pass parameters to a stored procedure, so that the stored procedure can act based on the parameter value (s) that INSERT INTO The INSERT INTO command is used to insert new rows in a table. Syntax SQL*Plus commands, for formatting query results, setting options, and editing and storing SQL commands and PL/SQL blocks The manner in which you continue a command on additional lines, end a command, or execute a command differs depending on the type of command you wish to enter and run. The best SQL Editor to Run SQL queries online for free. It is a combination of SQL along with the procedural features of programming languages. The most common SQL commands are SELECT, INSERT, UPDATE, DELETE, and CREATE. INSERT INTO Syntax It is possible to write the INSERT INTO statement in two ways: 1. Semicolon after SQL Statements? Some database systems require a semicolon at the end of each SQL statement. In this tutorial, we will use semicolon at the end of each SQL statement. The fields in a view are fields from one or more real tables in the database. The OR operator is used to filter records based on more than one condition, like if you want to return all customers from Germany but also those from Spain: The SQL UNION Operator The UNION operator is used to combine the result-set of two or more SELECT statements. The values can be numbers, text, or dates. Specify both the column names and the values to be inserted: The SQL SELECT Statement The SELECT statement is used to select data from a database. You can add SQL statements and functions to a view and present the data as if the data were coming from one single table. SQL*Plus displays a right angle-bracket (>) as a prompt for each additional line. W3Schools offers free online tutorials and references on web development languages such as HTML, CSS, JavaScript, PHP, SQL, and JQuery. You do not need to end a SQL*Plus command with a semicolon. So if you have an SQL query that you write over and over again, save it as a stored procedure, and then just call it to execute it. W3Schools has created an SQL database in your browser.