General MySQL Oracle SQL Server

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Database in Use When Renaming a Database in SQL Server
Why I am getting this error when renaming a database in SQL Server? If you are trying to rename a database that is in use, you will get an error message like this: "The database could not be exclusively locked to perform the operation." Before renaming a database, you must stop all client sessions u... 2016-11-20, 2729🔥, 0💬

Managing Tables and Columns in SQL Server
Where to find answers to frequently asked questions on Managing Tables and Columns in SQL Server? Here is a list of frequently asked questions and their answers compiled by FYIcenter.com DBA team on Managing Tables and Columns in SQL Server. Clear answers are provided with tutorial exercises on crea... 2016-11-20, 2579🔥, 0💬

Moving Database Physical Files to New Locations in SQL Server
How to move database physical files in SQL Server? If you want to move database physical files to a new location, you can use the "ALTER DATABASE" statements to bring the database offline, and link it to the files at the new location. The following tutorial gives you a good example: ALTER DATABASE F... 2016-11-20, 2441🔥, 0💬

What Is a Table in SQL Server
What is a table in SQL Server? A table in database is a data object used to store data. Tables have the following features: Data is stored in a table with a structure of rows and columns. Columns must be pre-defined with names, types and constrains. A table object may have other associated data obje... 2016-11-20, 2412🔥, 0💬

System Databases Used by SQL Servers in SQL Server
What are system databases in SQL Server? System databases are created by the SQL Server itself during the installation process. System databases are used by the SQL server to help manage other user databases and client execution sessions. SQL Server 2005 Express Edition uses 4 system databases: mast... 2016-11-20, 2381🔥, 0💬

SINGLE_USER/MULTI_USER - Database User Access Options in SQL Server
How to set database to be SINGLE_USER in SQL Server? Databases in SQL Server have three user access options: MULTI_USER - All users that have the appropriate permissions to connect to the database are allowed. This is the default. SINGLE_USER - One user at a time is allowed to connect to the databas... 2016-11-20, 2344🔥, 0💬

Generating CREATE TABLE Script on Existing Tables in SQL Server
How To Generate CREATE TABLE Script on an Existing Table in SQL Server? If you want to know how an existing table was created, you can use SQL Server Management Studio to automatically generate a "CREATE TABLE" script The following tutorial shows you how to do this: 1. Run SQL Server Management Stud... 2016-11-17, 4496🔥, 0💬

CREATE TABLE - Creating New Tables in SQL Server
How to create new tables with "CREATE TABLE" statements in SQL Server? If you want to create a new table, you can use the "CREATE TABLE" statement. The following tutorial script shows you how to create a table called "tip": CREATE TABLE tip (id INTEGER PRIMARY KEY, subject VARCHAR(80) NOT NULL, desc... 2016-11-17, 3564🔥, 0💬

"ALTER TABLE ... DROP COLUMN" - Deleting Existing Columns in SQL Server
How To Delete an Existing Column in a Table with "ALTER TABLE ... DROP COLUMN" in SQL Server? If you have an existing column in a table and you do not need that column any more, you can delete it with "ALTER TABLE ... DROP COLUMN" statement. Here is a tutorial script to delete an existing column: AL... 2016-11-17, 3259🔥, 0💬

"sp_help" - Getting a List of Columns in a Table in SQL Server
How To Get a List of Columns using the "sp_help" Stored Procedure in SQL Server? Another way to get a list of columns from a table is to use the "sp_help" stored procedure. "sp_help" returns more than just a list of columns. It returns: the table information, the column information, the identity col... 2016-11-17, 3213🔥, 0💬

"SELECT ... INTO" - Creating New Tables With Queries in SQL Server
How to create new tables with "SELECT ... INTO" statements in SQL Server? Let's say you have a table with many data rows, now you want to create a backup copy of this table of all rows or a subset of them, you can use the "SELECT ... INTO" statement. The tutorial script below gives you a good exampl... 2016-11-17, 3172🔥, 0💬

"sp_rename ... 'COLUMN'" - Renaming an Existing Column in SQL Server
How to rename an existing column with the "sp_rename" stored procedure in SQL Server? If you have an existing column in a table and you want to change the column name, you can use the "sp_rename ... 'COLUMN'" stored procedure. "sp_rename" allows you to change names of COLUMN, DATABASE, INDEX, USERDA... 2016-11-17, 3157🔥, 0💬

"sys.columns" - Getting a List of Columns in a Table in SQL Server
How To Get a List of Columns using the "sys.columns" View in SQL Server? If you have an existing table, but you don't remember what are the columns defined in the table, you can use the "sys.columns" system view to get a list of all columns of all tables in the current database. In order to a list o... 2016-11-17, 3151🔥, 0💬

"ALTER TABLE ... ADD" - Adding New Columns to Existing Tables in SQL Server
How To Add a New Column to an Existing Table with "ALTER TABLE ... ADD" in SQL Server? If you have an existing table with existing data rows, and want to add a new column to that table, you can use the "ALTER TABLE ... ADD" statement. The tutorial script below shows you a good example: ALTER TABLE t... 2016-11-17, 2919🔥, 0💬

"sp_columns" - Getting a List of Columns in a Table in SQL Server
How To Get a List of Columns using the "sp_columns" Stored Procedure in SQL Server? If you have an existing table, but you don't remember what are the columns defined in the table, you can use the "sp_columns" stored procedure to get a list of all columns of the specified table. The following tutori... 2016-11-17, 2772🔥, 0💬

"ALTER TABLE ... ALTER COLUMN" - Changing Column Data Type in SQL Server
How to change the data type of an existing column with "ALTER TABLE" statements in SQL Server? Sometimes, you may need to change the data type of an existing column. For example, you want increase the string length of a column. You can use the "ALTER TABLE ... ALTER COLUMN" statements in the followi... 2016-11-15, 4604🔥, 0💬

What Are Indexes in SQL Server
What Are Indexes in SQL Server? An index is a secondary database object associated with a table to improve the retrieval performance of rows from that table. An index can be defined for a single column or multiple columns of a given table. If an index is defined on a single column of a table, the in... 2016-11-15, 3716🔥, 0💬

"sp_rename ... 'OBJECT'" - Renaming Existing Tables in SQL Server
How to rename an existing table with the "sp_rename" stored procedure in SQL Server? If you have an existing table and you want to change the table name, you can use the "sp_rename ... 'OBJECT'" stored procedure. "sp_rename" allows you to change names of COLUMN, DATABASE, INDEX, USERDATATYPE, and OB... 2016-11-15, 3411🔥, 0💬

sys.indexes - Viewing Existing Indexes on an Given Table in SQL Server
How To View Existing Indexes on an Given Table using sys.indexes in SQL Server? Another way to view existing indexes defined for a given table is to use the system view called "sys.indexes". The tutorial exercise shows you how many indexes were defined from the previous tutorial on table "fyi_links"... 2016-11-15, 3085🔥, 0💬

SP_HELP - Viewing Existing Indexes on an Given Table in SQL Server
How To View Existing Indexes on an Given Table using SP_HELP in SQL Server? If you want to know how many indexes have been defined for a given table, you can use the SP_HELP built-in stored procedure in the following syntax: EXEC SP_HELP table_name -- Returns all database objects related the given t... 2016-11-15, 2511🔥, 0💬

Renaming an Existing Column with Management Studio in SQL Server
How to rename an existing column with SQL Server Management Studio in SQL Server? If you are using SQL Server Management Studio, you can rename almost any data objects through the Object Explorer window. The tutorial example below shows you how to rename a column: 1. Run SQL Server Management Studio... 2016-11-15, 2505🔥, 0💬

Understanding and Managing Indexes in SQL Server
Where to find answers to frequently asked questions on Understanding and Managing Indexes in SQL Server? Here is a list of frequently asked questions and their answers compiled by FYIcenter.com DBA team on Understanding and Managing Indexes in SQL Server. Clear answers are provided with tutorial exe... 2016-11-15, 2503🔥, 0💬

CREATE INDEX - Adding an Index on an Existing Table in SQL Server
How To Create an Index on an Existing Table in SQL Server? If you want to an index on an existing table, you can use the CREATE INDEX statement in a simple syntax: CREATE INDEX index_name ON table_name (column_name) The tutorial exercise below shows you how to add an index for the "in" column of the... 2016-11-15, 2349🔥, 0💬

"DROP TABLE" - Deleting Existing Tables in SQL Server
How To Drop an Existing Table with "DROP TABLE" Statements in SQL Server? If you want to delete an existing table and its data rows, you can use the "DROP TABLE" statement as shown in the tutorial script below: SELECT * FROM tipBackup GO id subject description create_date 1 Learn SQL Visit dev.fyice... 2016-11-15, 2281🔥, 0💬

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General MySQL Oracle SQL Server