- #COMMAND TO GET BACK SQL PROMPT IN SQLPLUS HOW TO#
- #COMMAND TO GET BACK SQL PROMPT IN SQLPLUS PASSWORD#
- #COMMAND TO GET BACK SQL PROMPT IN SQLPLUS WINDOWS#
You will get a "HELP not accessible" message if that table does not exist or if SQL*Plus cannot select from it because of some other problem:Įntering HELP without an argument will get you help on using HELP itself. SQL*Plus reads help text from a database table named HELP, owned by the user SYSTEM.
#COMMAND TO GET BACK SQL PROMPT IN SQLPLUS WINDOWS#
Early Windows versions (in Oracle8 i Database and earlier) of SQL*Plus don't implement the feature, and issuing the HELP command will yield nothing more than the dialog shown in Figure 2-5. Or the specifications for a function or procedure.ĭESC is not available on all implementations. Lists the column definitions for a table, view, or synonym,
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Here is the information HELP returns about the DESCRIBE command: Here's an example of how HELP INDEX (or HELP MENU prior to Oracle8 i Database) can be used to get a list of help topics:Įnter Help for COPY PAUSE DEFINE PRINT SPOOLĪfter identifying a topic of interest, you can get further help by using that topic name as an argument to the HELP command. In Oracle8 i, SQL and PL/SQL syntax became so complex that the SQL*Plus developers refocused the HELP system on only SQL*Plus commands. Prior to Oracle8 i Database, HELP also gave help on SQL and PL/SQL statements. Use the HELP command to get help on SQL*Plus commands.
#COMMAND TO GET BACK SQL PROMPT IN SQLPLUS PASSWORD#
The PASSWORD command, on the other hand, has the advantage of not showing your new password. You'll have to live with your password's being displayed visibly on the screen. Here's how:Īs you can see, you'll have to provide a username even when you are changing your own password. Instead, use the ALTER USER command to change your password. If you are running a version of SQL*Plus prior to Version 8 (and I surely hope you are not running anything that old), the PASSWORD command will not be available. If you are a DBA, you can change passwords for other users:
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Here is an example showing how the PASSWORD command is used: To change other people's passwords, you need the ALTER USER system privilege. In prior versions, you needed to use the ALTER USER command to change a password. The PASSWORD command was introduced beginning with SQL*Plus Version 8. You may abbreviate the command to PASSWD. Use the PASSWORD command to change your database password. Don't make the mistake of thinking that to EXIT is to ROLLBACK. Any pending transaction will be committed, or made permanent, when you issue an EXIT command to leave SQL*Plus. These are useful when running scripts in batch mode and are described fully in Chapter 11.ĮXIT should really be thought of as two commands: COMMIT and EXIT. With the Partitioning, OLAP and Data Mining optional arguments to the EXIT command may be used to return success or failure values to the operating system. Used in its simplest form, the EXIT command looks like this:ĭisconnected from Oracle Database 10g Enterprise Edition Release EXIT terminates your SQL*Plus session and closes the SQL*Plus window (GUI version) or returns you to the operating system prompt.
#COMMAND TO GET BACK SQL PROMPT IN SQLPLUS HOW TO#
For example, under Windows, filenames are not case-sensitive, but under Unix, they are.Ī good place to start, because you've just seen how to start SQL*Plus, is with the EXIT command. In practice, you're more likely to enter ad hoc commands in lowercase, and that's perfectly fine.įilenames may or may not be case-sensitive, depending on your operating system. In this book, commands are shown uppercase to make them stand out better in the text and examples. This section shows you how to exit SQL*Plus, how to change your database password, how to get help, how to view a database table definition, how to switch your database connection to another database, and more.Īll SQL*Plus commands are case-insensitive you may enter them using either lowercase or uppercase. Both will work, but using exit command may be OS dependent.Now that you know how to start SQL*Plus, it's time to learn a few basic commands. The difference in the 2 approaches is when you use echo EXIT, you are literally “typing” into sqlplus prompt whereas in the other case, you are signaling it to end. In this case, exit is an OS level command/program.
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My suggestion to use exit | sqlplus, uses sending a signal to the program to exit. I have updated the post, to include echo EXIT, based on a comment below.ĮXIT and QUIT are SQL*Plus commands (case doesn’t really matter, just wanted to distinguish them from DOS commands). After many years of being there, I see that this post is one of the popular ones! Who could have thought?!! This tip works on both DOS (Windows command prompt)_ and *nix systems. Essentially piping exit into sqlplus command! When the End of file is reached, SQL*Plus returns to the shell and your shell script can go on!)