General MySQL Oracle SQL Server

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File Formats Supported on Export Data in Oracle
How Many File Formats Are Supported to Export Data in Oracle? Oracle SQL Developer can allow to export table data into files in the following formats: TXT - Tab delimited fields file format. CSV - Comma Separated Values (CSV) file format. LOADER - File format used by SQL*Loader. XML - XML file forma... 2019-01-26, 3001🔥, 0💬

Show All User Accounts in the Database in Oracle
How To Get a List of All User Accounts in the Database in Oracle? If you don't like to use a SELECT statement to get a list of all user accounts in the current database, you can use the Reports view to do this as shown in the following tutorial example. You need to connect to the server as SYSTEM to... 2019-01-26, 2853🔥, 0💬

Show All Background Sessions in the Database in Oracle
How To Get a List of All Background Sessions in the Database in Oracle? If you don't like to use a SELECT statement to get a list of all background sessions in the current database, you can use the Reports view to do this as shown in the following tutorial example. You need to connect to the server ... 2019-01-26, 2610🔥, 0💬

Show All Tablespaces in the Current Database in Oracle
How To View Tablespaces in the Current Database in Oracle? If you want to get a list of all tablespaces used in the current database instance, you can use the DBA_TABLESPACES view as shown in the following SQL script example: SQL&gt; connect SYSTEM/fyicenter Connected. SQL&gt; SELECT TABLESP... 2019-01-20, 4231🔥, 0💬

Built-in Tablespaces in a Database in Oracle
What Are the Predefined Tablespaces in a Database in Oracle? When you create a new database, Oracle server will create 4 required tablespaces for the new database: SYSTEM Tablespace - Every Oracle database contains a tablespace named SYSTEM, which Oracle creates automatically when the database is cr... 2019-01-20, 3355🔥, 0💬

Oracle Data File - Unit of Physical Storage in Oracle
What Is an Oracle Data File in Oracle? An Oracle data file is a big unit of physical storage in the OS file system. One or many Oracle data files are organized together to provide physical storage to a single Oracle tablespace.   ⇒ Relations between a Tablespace and Data Files in Oracle ⇐ Oracle Ta... 2019-01-20, 3188🔥, 0💬

Relations between a Tablespace and Data Files in Oracle
How a Tablespace Is Related to Data Files in Oracle? Each tablespace in an Oracle database consists of one or more files called datafiles, which are physical structures that conform to the operating system in which Oracle is running.   ⇒ Relation between Database and Tablespaces in Oracle ⇐ Oracle ... 2019-01-20, 2987🔥, 0💬

Relation between Database and Tablespaces in Oracle
How a Database Is Related to Tablespaces in Oracle? A database's data is collectively stored in the datafiles that constitute each tablespace of the database. For example, the simplest Oracle database would have one tablespace and one datafile. Another database can have three tablespaces, each consi... 2019-01-20, 2896🔥, 0💬

Export Data to an XML File in Oracle
How To Export Data to an XML File in Oracle? If you want to export data from a table to a file in XML format, you can use the following steps: Right-click the table name, EMPLOYEES, in the object tree view. Select Export. Select XML. The Export Data window shows up. Click Format tab. Select Format a... 2019-01-12, 3392🔥, 0💬

Run Stored Procedures Interactively in Oracle
How To Run a Stored Procedure Interactively in Oracle? If have an existing stored procedure and you want to run it interactively, the tutorial steps listed below will help you out: Open you connection name, like Local_XE. Open Procedures. Right-click the procedure name: HELLO. Select Run. The Run PL... 2019-01-12, 2823🔥, 0💬

Create a Stored Procedure Interactively in Oracle
How To Create a Procedure Interactively in Oracle? If you want to create a stored procedure interactively, you can use the following steps: Open you connection name, like Local_XE. Right-click Procedures. Select Create PROCEDURE. The Create Procedure window shows up. Enter Name as: Hello Click OK. T... 2019-01-12, 2740🔥, 0💬

Assign Debug Privilege to a User in Oracle
How To Assign Debug Privileges to a User in Oracle? In order to run SQL Developer in debug mode, the session must be connected with a user who has debug privileges. The following script shows you how to assign debug privileges: Connect to the default database, XE, as SYSTEM. Run "GRANT debug any pro... 2019-01-12, 8750🔥, 0💬

Run Stored Procedures in Debug Mode in Oracle
How To Run Stored Procedures in Debug Mode in Oracle? If have an existing stored procedure and you want to debug it interactively, you can use the debug feature provided in SQL Developer. The following exercise shows you how to start the debug mode: Open you connection name, like Local_XE. Open Proc... 2019-01-12, 4518🔥, 0💬

Create a Table in a Given Tablespace in Oracle
How To Create a Table in a Specific Tablespace in Oracle? After you have created a new tablespace, you can give it to your users for them to create tables in the new tablespace. To create a table in a specific tablespace, you need to use the TABLESPACE clause in the CREATE TABLE statement. Here is a... 2019-01-08, 4718🔥, 1💬

💬 2019-01-08 Bvm: Help :)

Keep Data Files When Tablespace Dropped in Oracle
What Happens to Data Files If a Tablespace Is Dropped in Oracle? If a tablespace is dropped, what happens to its data files? By default, data files will remain in OS file system, even if the tablespace they are mapped is dropped. Of course, you delete the data files using OS commands, if they are no... 2019-01-01, 4487🔥, 0💬

Bring a Tablespace Offline in Oracle
How To Bring a Tablespace Offline in Oracle? If you want to stop users using a tablespace, you can bring it offline using the ALTER TABLESPACE ... OFFLINE statement as shown in the following script: SQL&gt; connect HR/fyicenter Connected. SQL&gt; CREATE TABLESPACE my_space 2 DATAFILE '/temp/... 2019-01-01, 3157🔥, 0💬

Show Free Space in a Tablespace in Oracle
How To See Free Space of Each Tablespace in Oracle? One of the important DBA tasks is to watch the storage usage of all the tablespaces to make sure there are enough free space in each tablespace for database applications to function properly. Free space information can be monitored through the USER... 2019-01-01, 3155🔥, 0💬

Bring a Tablespace Online in Oracle
How To Bring a Tablespace Online in Oracle? If you have brought a tablespace offline, now you want to make it available to users again, you can use the ALTER TABLESPACE ... ONLINE statement as shown in the following script: SQL&gt; connect HR/fyicenter SQL&gt; CREATE TABLESPACE my_space 2 DA... 2019-01-01, 2998🔥, 0💬

PL/SQL Language Case Insensitive in Oracle
Is PL/SQL Language Case Sensitive in Oracle? PL/SQL language is not case sensitive: Reserved words are not case sensitive. For example: CASE and Case are identical. Variable names and other names are not case sensitive. For example: TOTAL_SALARY and total_salary are identical. But values in string l... 2018-12-26, 6377🔥, 0💬

Set Up Breakpoints in Debug Mode in Oracle
How To Set Up Breakpoints in Debug Mode in Oracle? To debug a stored procedure, you need to set breakpoints at different statements in the code block, so that execution will be stopped at the statement marked with a breakpoint. When execution is stopped, you can then investigate different variables ... 2018-12-26, 3592🔥, 0💬

Enter Comments in PL/SQL in Oracle
How To Enter Comments in PL/SQL in Oracle? There are two ways to enter comments into PL/SQL codes: SQL Statement Style: Starts you comment any where in the line but prefixed with '--'. The comment ends at the end of the line. C Language Style: Starts you comment any where in the line with '/*' and e... 2018-12-26, 3232🔥, 0💬

Understanding PL/SQL Language Basics
Where to find answers to frequently asked questions on Understanding PL/SQL Language Basics? Here is a list of frequently asked questions and their answers compiled by FYIcenter.com DBA team on Understanding PL/SQL Language Basics. It can also be used as learning tutorials on defining variables, ass... 2018-12-26, 3204🔥, 0💬

What Do You Think about Oracle SQL Developer in Oracle
What Do You Think about Oracle SQL Developer in Oracle? To conclude this introductory FAQ collection, you should think about Oracle SQL Developer in comparison with other client tools like SQL*Plus and Oracle Web interface. SQL Developer is definitely better than the other tools, more functionality,... 2018-12-26, 2884🔥, 0💬

PL/SQL Anonymous Block in Oracle
What Is an Anonymous Block in Oracle? An anonymous block is a PL/SQL code block with no name. It consists of three parts: Declaration Part - Defining local variables and local procedures. Declaration part is optional. Execution Part - Defining execution logic with executable statements. Execution pa... 2018-11-29, 3191🔥, 0💬

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General MySQL Oracle SQL Server