Oracle command See full list on en. For the exact syntax of this clause, see the user's guide for your Oracle Net protocol. Declaration Oracle® Database SQL Language Reference 19c E96310-34 November 2025 Use the following commands to execute and collect timing statistics on SQL commands and PL/SQL blocks: / (slash) Executes the most recently executed SQL command or PL/SQL block which is stored in the SQL buffer. The EXECUTE command is often useful when you want to execute a PL/SQL statement that references a stored procedure. This command adds a DEFINE for the parameter if the parameter does not exist. Use the following commands to execute and collect timing statistics on SQL commands and PL/SQL blocks: / (slash) Executes the most recently executed SQL command or PL/SQL block which is stored in the SQL buffer. See START for information on the START command. Saved SQL commands must have names unique within a given workspace. Syntax Purpose Us e the CREATE TABLE statement to create one of the following types of tables: A relational table, which is the basic structure to hold user data. It is a relational database system developed by Oracle Corporation in 1980. Using the TRCROUTE Utility to Test Connectivity from the Client The Trace Route Utility (TRCROUTE), in Linux and UNIX environments Feb 22, 2020 · Oracle Sqlplus Cheat Sheet Feb 22, 2020 Modified on Mar 24, 2021 Categories: cheat-sheet , cli , database #oracle , #sql , #sqlplus 5 minute read In this post, I’m going to aggregate all those Oracle commands that I can never remember but are very useful to have somewhere written down. You can also create an object type and then use it in a column when Description The SHOW command can be used to display information about active connections and database objects. 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. When using SQL Commands, remember the following: SQL commands created in the Query Builder can be accessed in SQL Commands. EXEC [UTE] statement Executes a single PL/SQL statement or runs a stored Only enables Oracle Database users with the RESTRICTED SESSION system privilege to connect to the database. Command-Line Parameters for SQL*Loader Manage SQL*Loader by using the command-line parameters. For detailed information on each command, refer to the SQL*Plus User's Guide and Reference. All of these basic SQL commands work on Oracle, SQL Server, MySQL, and PostgreSQL, unless otherwise indicated. Except as expressly permitted in your license agreement or allowed by law, you may not use, copy, reproduce, translate, broadcast, modify, license, transmit, distribute, exhibit, perform, publish, or display any part, in This Quick Reference shows SQL*Plus command syntax. This Quick Reference has the following topics: Alphabetic List of SQL*Plus Commands Starting and Leaving SQL*Plus Starting Up and Shutting Down a Database Entering and Executing Commands Manipulating SQL, SQL*Plus and PL/SQL Commands Formatting Query Apr 30, 2021 · In this blog, we will learn the most common-used commands of the Oracle database. The ARGUMENT command enables you to define SQL*Plus parameters that are passed to SQLcl scripts. Use commands with the database keyword to add, delete, move, and upgrade databases. This is especially useful for storing complex commands or frequently used reports. Using SQLcl, you can execute SQL and PL/SQL statements interactively or as as a batch file. 2 About the CONNECT Command Use the CONNECT command to connect to a database. SQL statements are the means by which programs and users access data in an Oracle database. Purpose Use the ALTER DATABASE statement to modify, maintain, or recover an existing database. 6 Manipulating SQL, SQLcl, and PL/SQL Commands Use the following commands to edit SQL commands and PL/SQL blocks: A[PPEND] text Adds specified text to the end of the current line in the SQL buffer. The commands shown in Table A-1 are SQL Mar 23, 2023 · In this quick reference SQL Cheat Sheet, we will show Oracle SQL and PostgreSQL commands with examples. Start up and Shut down the Oracle Database Instance You may need to shut down the database instance to perform certain administrative tasks. Recovery Manager syntax diagrams use lines and arrows to show syntactic structure, as shown in the Jul 29, 2024 · Run Commands Using a Shell and Command Line Bash (/bin/bash) is an application and the default shell in Oracle Linux. merge_update_clause The merge_update_clause specifies the new column values of the target table or view. Here, we will discuss the SQL*Plus commands, and understand how to use the SQL*Plus command-line argument. If you use an expression in a COLUMN command, you must enter expr exactly as it appears in the SELECT command. It has a command-line user interface. For information on how Oracle recompiles and reauthorizes schema objects and the circumstances under which a DDL statement would cause this, see Oracle8 Concepts. In this tutorial, you learned some basic commands for interacting with Oracle Database, including connecting to the database, running queries, managing data, handling transactions, and using PL/SQL. This section provides an introduction to SQL Command Line (SQL*Plus), an interactive and batch command-line query tool that is installed with Oracle Database Express Edition. To shut down and restart the database instance, perform the following steps: Open a terminal window as the oracle user. If you wish, however, you can This software and related documentation are provided under a license agreement containing restrictions on use and disclosure and are protected by intellectual property laws. 2), the DELETE statement accepts remote LOB locators as bind variables. Refer to the Oracle8 Server SQL Reference Manual for full documentation of these commands. This tool enables you to perform the same database management operations, and query, insert, update, or delete data directly in the database. Exit Codes for Inspection and Display Oracle SQL*Loader provides the results of a SQL*Loader run immediately upon completion. An object table, which is a table that uses an object type for a column definition. When you finish entering the command, you can press Return. For example, you could roll up four quarterly sales tables into a yearly sales Syntax descriptions are provided in this book for RMAN command-line constructs in graphic form or Backus Naur Form (BNF). If you wish, you can type a space before typing the hyphen. SQL*Plus removes the SQLTERMINATOR (a semicolon by default) before the @ command is issued. If you This constructor instantiates a new instance of OracleCommand class using the supplied SQL command or stored procedure, and connection to the Oracle database. We’ll use the terminal to enter shell metacharacters to simplify commands, structure, and output. The SQL Worksheet currently supports a number of SQL*Plus commands. Identify migrated and chained In SQL*Plus command-line, the use of an external editor in combination with the @, @@ or START commands is an effective method of creating and executing generic scripts. Purpose Use a SELECT statement or subquery to retrieve data from one or more tables, object tables, views, object views, materialized views, analytic views, or hierarchies. SQL*Plus Instant Client connects to any available Oracle database, but does not require its own Oracle User's Guide 2. Oracle implicitly commits the current transaction before and after every DDL statement. This positions SQLcl as the go-to interface for both traditional database development and cutting Useful Srvctl Commands Useful CRSCTL Commands Useful Gather Statistics Commands In Oracle Useful ADRCI Commands In Oracle Useful DGMGRL Commands In Oracle Dataguard Useful database monitoring queries Useful Flashback Related Commands Useful scheduler job Related Commands Useful Oracle Auditing Related Commands Useful RMAN Commands Useful TFACTL An OracleCommand object represents a SQL command, a stored procedure, or a table name. Using SQL commands you can create, edit, view, run, and delete database objects. SQL* Plus CommandsSupported SQL*Plus Commands This document details the SQL*Plus commands you can use in the Oracle SQL Developer SQL Worksheet. You do not need to end a SQL*Plus command with a semicolon. Table of Contents Intro Getting Help With sqlplus Connecting to an Oracle Database Using SQL*Plus Show the OracleCommand (string, OracleConnection) This constructor instantiates a new instance of OracleCommand class using the supplied SQL command or stored procedure, and connection to the Oracle database. This You can continue a long SQL*Plus command by typing a hyphen at the end of the line and pressing Return. Declaration // C# public OracleCommand(string cmdText, OracleConnection OracleConnection); Parameters cmdText The SQL command or stored procedure to be executed. Jul 29, 2024 · Learn to use the Oracle Linux shell and command line to perform a series of introductory tasks to administer the system. Oracle SQLcl (SQL Developer Command Line) is a Java-based command-line interface for Oracle Database. This section explains RMAN conventions exclusively. About Local and Remote Connections Oracle Database XE supports connections between the SQL Command Line (SQL*Plus) and the database either locally, or remotely over a TCP/IP network. Purpose Use the ANALYZE statement to collect statistics, for example, to: Collect or delete statistics about an index or index partition, table or table partition, index-organized table, cluster, or scalar object attribute. Refer to the “Distributed LOBs” chapter in Oracle Database SecureFiles and Large Objects Developer's Guide for more information. Oracle SQLcl is a powerful, flexible, and free command-line interface designed for modern Oracle Database professionals. Oracle Command Class In this article Definition Remarks Constructors Properties Show 5 more Definition Namespace: System. OracleConnection The connection to . The command rule is enforced at run Testing the Network This is the recommended sequence for testing the network. Many DDL statements may cause Oracle to recompile or reauthorize schema objects. If part or all of the result of a SELECT statement is equivalent to an existing materialized view, then Oracle Database may use the materialized view in place of one or more tables specified in the SELECT statement. By familiarizing yourself with these SQL operations, you can streamline your workflow, optimize performance and ensure data integrity across your database. e it can run on various hardware across operating systems. If the update clause is executed, then all update triggers defined on the target table are activated. This constructor instantiates a new instance of OracleCommand class using the supplied SQL command or stored procedure, and connection to the Oracle database. Use slash (/) at the command prompt or line number prompt in SQLcl command line. Refer to Subclauses for the syntax of the subclauses listed in the syntax for the statements. Specify the where_clause if you want the database to execute the update operation only if the specified condition is Starting with Oracle Database 12 c Release 2 (12. Oracle Client Assembly: System. NET Stream, a scalar value, or as output parameters. What is Oracle database? Oracle Database allows you to quickly and safely create, maintain and retrieve data. Jul 15, 2020 · SQL, or Structured Query Language, contains a range of commands for interacting with the database. You can use a string after the command to see a subset of parameters whose names include that string. There is also the SQL*Plus Instant Client which is a standalone command-line interface available on platforms that support the OCI Instant Client. Data. Alternatively, at the command line, you can enter the following command at a Windows command prompt: SQL*Plus is a command-line tool that provides access to the Oracle RDBMS. Except as expressly permitted in your license agreement or allowed by law, you may not use, copy, reproduce, translate, broadcast, modify, license, transmit, distribute, exhibit, perform, publish, or display any part, in The EXECUTE command is often useful when you want to execute a PL/SQL statement that references a stored procedure. The SQL commands for modifying data are referred to as Data Manipulation Language (DML). The OracleCommand object is responsible for formulating the request and passing it to the database. To separate text from the preceding characters with a space, enter two spaces. To streamline my workflow and avoid unnecessary time spent SQL Command List T able D-1, on the following page, lists major SQL commands. The method that you use to connect to Oracle Database XE with the SQL Command Line depends on whether you are initiating a local connection or a remote connection. To start SQL*Plus, from the Start menu, select All Programs, then Oracle - HOMENAME, then Application Development, and then SQL Plus. Identifies the data item (typically, the name of a column) in a SQL SELECT command to which the column command refers. Data. To use Import with Oracle Net, include the connection qualifier string @connect_string when entering the username/password in the exp or imp command. These statements can include SELECT, ALTER SYSTEM, database definition language (DDL), and data manipulation language (DML) statements. If the expression in the SELECT command is a+b, for example, you cannot use b+a or (a+b) in a COLUMN command to refer to the expression in the SELECT command. Using the TNSPING Utility to Test Connectivity from the Client The TNSPING utility determines whether the listener for a service on an Oracle Net network can be reached successfully. One example is to view and set values to manage command-line history. SQLcl provides inline editing, statement completion, command recall, and also supports existing SQL*Plus scripts. This article lists all of those commands, what they do, and what they look like. If results are returned, OracleCommand is responsible for returning results as an OracleDataReader, a . OracleClient. To customize and enforce the command rule, you associate it with a rule set, which is a collection of one or more rules. Jul 23, 2025 · This SQL cheat sheet provide a wide range of commands and techniques essential for effective database management and data manipulation. Learn essential commands, SQL queries, and database management tips efficiently In this tutorial, you will learn how to use the Oracle STARTUP command to start up an Oracle Database instance. For more information on PL/SQL, see your Oracle Database PL/SQL Language Reference. SQL*Plus displays a right angle-bracket (>) as a prompt for each additional line. If you require a semicolon in your command, add a second SQLTERMINATOR. Does not list the command. Oracle recommends that you use the ALTER MATERIALIZED VIEW LOG statement, rather than ALTER TABLE, whenever possible for operations on materialized view log tables. EXEC[UTE] statement Executes a single PL/SQL statement or runs a stored Starting SQL*Loader Learn how to start SQL*Loader, and how to specify parameters that manage how the load is run. User's Guide 2. The sections that follow show each SQL statement and its related syntax. When opening a terminal, Oracle Linux gives you a prompt ($). wikibooks. dll If the START command is disabled (see "Disabling SQL*Plus, SQL, and PL/SQL Commands"), this will also disable the @ command. That usage is now deprecated. 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 platforms. This section lists Oracle Database Lite SQL commands, clauses, and pseudocolumns in alphabetical order and discusses each. See Oracle Database SQL Language Reference for general information about how to interpret syntax diagrams and BNF notation. SQLcl's integrated MCP Server bridges Oracle Databases with AI-driven solutions by allowing Language Learning Models (LLMs) to interactively execute queries and process results. NET XmlReader, a . In earlier releases of Oracle, when collection_expression was a subquery, table_collection_expression was expressed as THE subquery. OracleCommand (string, OracleConnection) This software and related documentation are provided under a license agreement containing restrictions on use and disclosure and are protected by intellectual property laws. The SHOW SPPARAMETERS command, without any string following the command, displays all initialization parameters for all instances. org Jul 17, 2024 · This cheat sheet provides a quick reference to some of the most commonly used commands, helping you navigate and operate your Oracle databases more effectively. A SQL command can contain SQL statements or PL/SQL blocks. SQL*Plus commands which are not supported by the SQL Worksheet are ignored and are Dec 30, 2023 · Explore Oracle Database with a handy cheatsheet for quick reference. SQL*Plus commands have to be interpreted by the SQL Worksheet before being passed to the database. What is SQL Commands? You can use SQL Commands to create, edit, view, run, and delete SQL commands. The commands shown in Table A-1 are SQL 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. Sep 13, 2024 · As a developer working with Oracle and BigQuery databases, I frequently find myself needing quick access to essential SQL commands. Validate the structure of an index or index partition, table or table partition, index-organized table, cluster, or object reference (REF). Oracle performs this update if the condition of the ON clause is true. In this section, you’ll learn how to change the contents of an Oracle database. Execute the oraenv command to set the environment variables. This discussion includes the following. You can write scripts which contain SQL*Plus, SQL and PL/SQL commands, which you can retrieve and edit. A command rule protects Oracle AI Database SQL statements that affect one or more database objects. Later, you can use the ALTER SYSTEM command to disable the restricted session feature. An object table is explicitly defined to hold object instances of a particular type. It is cross-platform i. There is no interaction between SQL Commands SQL*Plus is a command-line tool that provides access to the Oracle RDBMS. SQL*Plus is an interactive and batch query tool that is installed with every Oracle Database installation. You can use a table_collection_expression to update rows in one table based on rows from another table.