General MySQL Oracle SQL Server

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Download-Oracle-SQL-Developer in Oracle
How To Download Oracle SQL Developer in Oracle? If you want to download a copy of Oracle SQL Developer, visit http://www.oracle.com/technolo gy/software/products/sql/.If you are using Windows systems, click the "Oracle SQL Developer for Windows" link. This allows you to download the Windows version ... 2019-02-05, 2667🔥, 0💬

Export Your Own Schema in Oracle
How To Export Your Own Schema in Oracle? If you have a non-system user account and you want to export all data objects in the schema associated with your account, you can use the "expdp" command with the SCHEMAS parameter. Running "expdp" command with a non-system user account requires a directory o... 2016-10-15, 2663🔥, 0💬

Modes of Data Dump Export and Import in Oracle
What Are Data Pump Export and Import Modes in Oracle? Data Pump export and import modes are used to determine the type and portions of database to be exported and imported. Oracle 10g supports 5 export and import modes: Full: Exports and imports a full database. Use the FULL parameter to specify thi... 2016-10-15, 2663🔥, 0💬

Ways to End the Current Transaction in Oracle
How To End the Current Transaction in Oracle? There are several ways the current transaction can be ended: Running the COMMIT statement will explicitly end the current transaction. Running the ROLLBACK statement will explicitly end the current transaction. Running any DDL statement will implicitly e... 2019-09-04, 2662🔥, 0💬

Shutdown 10g XE Server from Commmand Line in Oracle
How To Shutdown Your 10g XE Server from Command Line in Oracle? You can shutdown your 10g XE server from command line by: Open a command line window. Change directory to \oraclexe\app\oracle\product\1 0.2.0\server\BIN\.Run StopDB.bat. The batch file StopDB.bat contains: net stop OracleServiceXE   ⇒ ... 2020-10-10, 2657🔥, 0💬

Running CREATE DATABASE Statement Again in Oracle
How To Run CREATE DATABASE Statement Again in Oracle? After cleaning up the results of a previously failed CREATE DATABASE statement, you can run the CREATE DATABASE statement again as shown below: SQL&gt; @$ORACLE_HOME\config\scripts\c reate_database_fyi.sql;CREATE DATABASE FYI * ERROR at line ... 2019-03-27, 2657🔥, 0💬

Show All User Accounts in Oracle
How To List All User Accounts in Oracle? User accounts can be accessed through a system view called ALL_USERS. A simple SELECT statement can be used to get a list of all user accounts. Try the following script: &gt;.\bin\sqlplus /nolog SQL&gt; connect SYSTEM/fyicenter Connected. SQL&gt; ... 2019-07-21, 2651🔥, 0💬

Connect MS Access to Oracle Servers in Oracle
How To Connect MS Access to Oracle Servers in Oracle? Once you got a DSN defined in the ODBC manager that connects to an Oracle server, you can connect a normal MS Access document to the Oracle server, and link an Access table to Oracle table. The tutorial below gives you a good example: Start MS Ac... 2016-10-15, 2645🔥, 0💬

What Is a Stored Procedure in Oracle
What Is a Stored Program Unit in Oracle? A stored program unit, or procedure, is a named block of codes which: Has a name. Can take parameters, and can return values. Is stored in the data dictionary. Can be called by many users.   ⇒ Create a Simple Stored Procedure in Oracle ⇐ Run the Anonymous Bl... 2019-03-20, 2644🔥, 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, 2641🔥, 0💬

What Is a RECORD in PL/SQL in Oracle
What Is a RECORD in PL/SQL in Oracle? RECORD is a composite data type in PL/SQL. It can have many fields representing data elements with different data types. Variables of RECORD type can be designed to hold data from database table rows. To use RECORD data type, you need to define a specific RECORD... 2018-09-13, 2641🔥, 0💬

Call a Stored Function in Oracle
How To Call a Stored Function in Oracle? A stored function can be called as part of expression in any PL/SQL statement. One simplest way to call a stored function is to a dummy SELECT statement as shown in the following tutorial script using SQL*Plus: SQL&gt; CREATE OR REPLACE FUNCTION GET_SITE ... 2018-10-26, 2639🔥, 0💬

Install Oracle ODBC Drivers in Oracle
How To Install Oracle ODBC Drivers in Oracle? Oracle offers different ODBC drivers for different versions of Oracle servers. When you install an Oracle server or a client tools on your Windows system, the appropriate ODBC driver will be installed for you automatically. If you want to install a speci... 2016-10-15, 2638🔥, 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, 2637🔥, 0💬

Create a New View in Oracle
How To Create a New View in Oracle? You can create a new view based on one or more existing tables by using the CREATE VIEW statement as shown in the following script: CREATE VIEW employee_department AS SELECT e.employee_id, e.first_name, e.last_name, e.email, e.manager_id, d.department_name FROM em... 2020-02-07, 2636🔥, 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, 2635🔥, 0💬

Original Export/Import Utilities in Oracle
What Are the Original Export and Import Utilities in Oracle? Oracle original Export and Import utilities are standalone programs that provide you a simple way for you to transfer data objects between Oracle databases, even if they reside on platforms with different hardware and software configuratio... 2016-10-15, 2634🔥, 0💬

What Are DDL Statements in Oracle
What Are DDL Statements in Oracle? DDL (Data Definition Language) statements are statements to create and manage data objects in the database. The are 3 primary DDL statements: CREATE - Creating a new database object. ALTER - Altering the definition of an existing data object. DROP - Dropping an exi... 2020-02-29, 2633🔥, 0💬

Name Query Output Columns in Oracle
How To Name Query Output Columns in Oracle? Each column in the query output has a default name. If you don't like the default name, you can specify a new name for any column in the query output by using the AS clause. The following statement shows you a good example: SQL&gt; SELECT department_id... 2019-09-27, 2633🔥, 2💬

💬 2019-09-19 Aninda mahadev: Good Tutorial!!!

Initialize Variables with Default Values in Oracle
How To Initialize Variables with Default Values in Oracle? There are two ways to assign default values to variables at the time of declaration: Using key word DEFAULT - Appending "DEFAULT value" to the end of declaration statements. Using assignment operator - Appending ":= value" to the end of decl... 2018-08-06, 2633🔥, 0💬

What Are DML Statements in Oracle
What Are DML Statements in Oracle? DML (Data Manipulation Language) statements are statements to change data values in database tables. The are 3 primary DML statements: INSERT - Inserting new rows into database tables. UPDATE - Updating existing rows in database tables . DELETE - Deleting existing ... 2020-02-07, 2631🔥, 0💬

Turn On and Off Recycle Bin for the Session in Oracle
How To Turn On or Off Recycle Bin for the Session in Oracle? If you want to control the recycle bin feature in your own session, you can use the ALTER SESSION statement to turn on or off. Here is an example SQL script: SQL&gt; connect HR/fyicenter Connected. SQL&gt; SELECT COUNT(*) FROM recy... 2019-05-10, 2629🔥, 0💬

Systems Supported by 10g XE Server in Oracle
What Operating Systems Are Supported by Oracle Database 10g XE in Oracle? Oracle Database 10g Express Edition is available for two types of operating Systems: Linux x86 - Debian, Mandriva, Novell, Red Hat and Ubuntu Microsoft Windows   ⇒ Download Oracle Database 10g XE in Oracle ⇐ Limitations of Or... 2020-05-05, 2626🔥, 0💬

What Is a READ ONLY Transaction in Oracle
What Is a READ ONLY Transaction in Oracle? A READ ONLY transaction is a transaction in which the read consistency is set at the transaction level. In a READ ONLY transaction, a logical snapshot of the database is created at the beginning of the transaction and released at the end of the transaction.... 2019-08-23, 2623🔥, 0💬

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General MySQL Oracle SQL Server