General MySQL Oracle SQL Server

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AdventureWorksLT Entity Relation Diagram in SQL Server
How AdventureWorksLT tables are related in SQL Server? There are 12 user tables defined in AdventureWorksLT: USE AdventureWorksLT GO SELECT s.name, t.name, t.type_desc FROM sys.tables t, sys.schemas s WHERE t.schema_id = s.schema_id ORDER BY s.name GO s.name t.name t.type_desc dbo BuildVersion USER_... 2016-12-02, 12050🔥, 0💬

Getting Started with Transact-SQL Statements in SQL Server
Where to find answers to frequently asked questions on Getting Started with Transact-SQL Statements in SQL Server? Here is a list of frequently asked questions and their answers compiled by FYIcenter.com DBA team on Getting Started with Transact-SQL Statements in SQL Server. Clear examples are provi... 2016-12-02, 3285🔥, 0💬

Attaching AdventureWorksLT Physical Files to the Server in SQL Server
How to attach AdventureWorksLT physical files to the server in SQL Server? After installed the sample database AdventureWorksLT, you need to attach it to your SQL server to make it available by follow this tutorial: EXEC sp_attach_db @dbname=N'AdventureWorksLT', @filename1=N'C:\Program Files\Microso... 2016-12-02, 3155🔥, 0💬

Adding Address Records into AdventureWorksLT in SQL Server
How to add an address record into AdventureWorksLT in SQL Server? To find out if we can add data into AdventureWorksLT or not, you can try to add an address record into the "SalesLT.Address" in AdventureWorksLT: USE AdventureWorksLT GO INSERT SalesLT.Address (AddressLine1, City, StateProvince, Count... 2016-12-02, 2996🔥, 0💬

"CREATE DATABASE" Statement - Creating New Databases in SQL Server
How to create new databases with "CREATE DATABASE" statements in SQL Server? This is the first tutorial of a quick lesson on creating database objects with Transact-SQL statements. This lesson shows you how to create a database, create a table in the database, and then access and change the data in ... 2016-12-02, 3497🔥, 0💬

"CREATE LOGIN" Statements - Creating a Login in SQL Server
How to create a login to access the database engine using "CREATE LOGIN" statements in SQL Server? This is the first tutorial of a quick lesson on creating login and configure users for databases with Transact-SQL statements. Granting a user access to a database involves three steps. First, you crea... 2016-12-02, 3242🔥, 0💬

"INSERT" and "UPDATE" Statements - Inserting and Updating Data In Tables in SQL Server
How to insert and update data into a table with "INSERT" and "UPDATE" statements in SQL Server? This is the third tutorial of a quick lesson on creating database objects with Transact-SQL statements. This lesson shows you how to create a database, create a table in the database, and then access and ... 2016-12-02, 3181🔥, 0💬

"CREATE TABLE" Statement - Creating New Tables in SQL Server
How to create new table with "CREATE TABLE" statements in SQL Server? This is the second tutorial of a quick lesson on creating database objects with Transact-SQL statements. This lesson shows you how to create a database, create a table in the database, and then access and change the data in the ta... 2016-12-02, 3073🔥, 0💬

"SELECT" Statements - Reading the Data In a Table in SQL Server
How to read data in a table with "SELECT" statements in SQL Server? This is the fourth tutorial of a quick lesson on creating database objects with Transact-SQL statements. This lesson shows you how to create a database, create a table in the database, and then access and change the data in the tabl... 2016-12-02, 2872🔥, 0💬

What Is a SQL*Loader Control File in Oracle
What Is a SQL*Loader Control File in Oracle? A SQL*Loader control file a text that defines how data files should be loaded into the database. It allows you to specify: Where is the input data file. The format of the input date file. The target table where the data should be loaded. How input data fi... 2016-11-27, 3686🔥, 0💬

Load Data with SQL*Loader in Oracle
How To Load Data with SQL*Loader in Oracle? Let's say you have a table defined as: CREATE TABLE student (id NUMBER(5) PRIMARY KEY, first_name VARCHAR(80) NOT NULL, last_name VARCHAR(80) NOT NULL, birth_date DATE NOT NULL, social_number VARCHAR(80) UNIQUE NOT NULL); There is an input data file stored... 2016-11-27, 3665🔥, 0💬

Load Data through External Tables in Oracle
How To Load Data through External Tables in Oracle? If you have data stored in external files, you can load it to database through an external table by the steps below: Create an external table with columns matching data fields in the external file. Create a regular table with the same columns. Run ... 2016-11-27, 3106🔥, 0💬

Restrictions on External Table Columns in Oracle
What Are the Restrictions on External Table Columns in Oracle? When creating external table columns, you need to watch out some restrictions: "PRIMARY KEY" is not allowed. "NOT NULL" is not allowed. "DEFAULT value" is not allowed.   ⇒ What Is a Directory Object in Oracle ⇐ Load Data through Externa... 2016-11-27, 3014🔥, 0💬

What Is an External Table in Oracle
What Is an External Table in Oracle? An external table is a table defined in the database with data stored outside the database. Data of an external table is stored in files on the operating systems. Accessing data of external tables are done through data access drivers. Currently, Oracle supports t... 2016-11-27, 2944🔥, 0💬

"GRANT EXECUTE" Statements - Granting EXECUTE permission in SQL Server
How to grant a permission using "GRANT EXECUTE" statements in SQL Server? This is the fourth tutorial of a quick lesson on creating login and configure users for databases with Transact-SQL statements. Granting a user access to a database involves three steps. First, you create a login. The login le... 2016-11-27, 3397🔥, 0💬

"CREATE USER" Statements - Creating a User in SQL Server
How to create a user to access a database using "CREATE USER" statements in SQL Server? This is the second tutorial of a quick lesson on creating login and configure users for databases with Transact-SQL statements. Granting a user access to a database involves three steps. First, you create a login... 2016-11-27, 3296🔥, 0💬

"DROP" Statements - Deleting database objects in SQL Server
How to delete database objects with "DROP" statements in SQL Server? To remove all database objects created by previous tutorials, you could just delete the database. However, in this tutorial, you will go through the steps to reverse every action you took doing the tutorial. Removing permissions an... 2016-11-27, 3219🔥, 0💬

"CREATE VIEW/PROCEDURE" Statements - Creating a View and a Stored Procedure in SQL Server
How to create a view and a stored procedure using "CREATE VIEW/PROCEDURE" statements in SQL Server? This is the third tutorial of a quick lesson on creating login and configure users for databases with Transact-SQL statements. Granting a user access to a database involves three steps. First, you cre... 2016-11-27, 3116🔥, 0💬

Database Engine Tutorials from SQL Server 2005 Books Online
How to use Transact-SQL statements to access the database engine in SQL Server? Transact-SQL statements can be used to access the database engine directly. Here are some good tutorials provided by the SQL Server 2005 Books Online. See the SQL Server 2005 Tutorials &gt; Database Engine Tutorials ... 2016-11-27, 2933🔥, 0💬

"USE" - Setting the Current Database in SQL Server
How to set the current database in SQL Server? Once you are connected to the SQL Server, you should select a database to work with and set it as the current database using the "USE" statement with this syntax: USE database_name The following tutorial example shows you how to set "FyiCenterData" as t... 2016-11-24, 8402🔥, 0💬

Location of Database Files in SQL Server
Where is my database stored on the hard disk in SQL Server? If a database is created with simple CREATE DATABASE statement, the server will create two database files on the hard disk to store data and configuration information about that data bases: database_name.mdf - SQL Server Database Primary Da... 2016-11-24, 3214🔥, 0💬

Database in Use When Dropping a Database in SQL Server
Why I am getting this error when dropping a database in SQL Server? If you are trying to drop a database that is in use, you will get an error message like this: 'Cannot drop database "FyiCenterData" because it is currently in use.' Before dropping a database, you must stop all client sessions using... 2016-11-24, 3074🔥, 0💬

What Is a Database in SQL Server
What is a database in SQL Server? A database is a logical container that contains a set of related database objects: Tables - Storages of structured data. Views - Queries to present data from tables. Indexes - Sorting indexes to speed up searches. Stored Procedures - Predefined SQL program units. Us... 2016-11-24, 2957🔥, 0💬

Managing Databases and Physical Files in SQL Server
Where to find answers to frequently asked questions on Managing Databases and Physical Files in SQL Server? Here is a list of frequently asked questions and their answers compiled by FYIcenter.com DBA team on Managing Databases and Physical Files in SQL Server. Clear answers are provided with tutori... 2016-11-24, 2957🔥, 0💬

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General MySQL Oracle SQL Server