General MySQL Oracle SQL Server

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AdventureWorksLT - Downloading and Installing the Sample Database in SQL Server
How to download and install the scaled-down database AdventureWorksLT in SQL Server? If you want to practice you DBA skills with the scaled-down version of the sample database AdventureWorksLT provided by Microsoft, you should follow this tutorial to download and install it first: 1. Go to the SQL S... 2019-08-04, 5315👍, 1💬

💬 2019-08-04 Marc: many thanks

CONTINUE to Next Loop Iteration in SQL Server Transact-SQL
How to continue to the next iteration of a WHILE loop in SQL Server Transact-SQL? How to use CONTINUE statements? You can use the CONTINUE statement to continue to the next iteration of a WHILE loop by skipping the rest of statement block of the current iteration using this syntax: WHILE condition B... 2017-01-11, 4264👍, 0💬

About dba.FYIcenter.com Website
What is dba.FYIcenter.com Website about? dba.FYIcenter.com is a Website for DBAs (database administrators) and database application developers looking for database server management tips, database programming tutorials, career information, and so on. Just browse through the site, you will find the b... 2016-10-17, 4220👍, 0💬

Unicode Character String Literals in SQL Server Transact-SQL
How To Enter Unicode Character String Literals in SQL Server Transact-SQL? Unicode characters are multi-byte characters. They are very hard to be entered as string literals, because it requires: The SQL client tool to support Unicode characters. The command line tool 'sqlcmd' does not support Unicod... 2019-12-05, 3781👍, 1💬

💬 2019-12-05 gopala krishna: gopala krishna

Installing PHP on Windows in MySQL
How To Install PHP on Windows in MySQL? The best way to download and install PHP on Windows systems is to: Go to http://www.php.net, which is the official Web site for PHP. Download PHP binary version for Windows in ZIP format. Unzip the downloaded file into a directory. You are done. No need to run... 2017-07-30, 3210👍, 0💬

bin2hex - Converting Binary Strings into Hexadecimal Character Strings in SQL Server
How To Convert Binary Strings into Hexadecimal Character Strings in SQL Server? When a query returns a binary string value to the client tool, it will be displayed by the client tool as hexadecimal digits in a character string format. But they are hexadecimal digits on the display window, not in the... 2018-06-19, 2508👍, 1💬

💬 2018-06-19 ramesh adhikari: sdafdffddf

RAND() - Generating Random Numbers in SQL Server
How To Generate Random Numbers with the RAND() Function in SQL Server Transact-SQL? Random numbers are very useful for generating test data, passwords, or other security related data. SQL Server 2005 offers you the random number generator function RAND in two format: RAND(seed) - Starting a new sequ... 2017-03-11, 2501👍, 0💬

Verifying PHP Installation in MySQL
How To Verify Your PHP Installation in MySQL? PHP provides two execution interfaces: Command Line Interface (CLI) and Common Gateway Interface (CGI). If PHP is installed in the \php directory on your system, you can try this to check your installation: Run "\php\php -v" command to check the Command ... 2017-07-30, 2385👍, 0💬

sys.server_principals - Listing All Login Names in SQL Server
How To List All Login Names on the Server in SQL Server? If you want to see a list of all login names defined on the server, you can use the system view, sys.server_principals as shown in this tutorial exercise: -- Login with sa SELECT name, sid, type, type_desc FROM sys.server_principals WHERE type... 2016-10-20, 2183👍, 0💬

Binary Literals in SQL Server Transact-SQL
What are binary literals supported in SQL Server Transact-SQL? Binary literals in Transact-SQL are sequences of bytes written in hexadecimal digits with 0x prefixes. Binary literals are used to provide values to binary variables or table columns like BINARY, VARBINARY, IMAGE, etc. Here are some simp... 2017-05-05, 1995👍, 0💬

DATEADD() Function Usage Examples in SQL Server
How To Use DATEADD() Function in SQL Server Transact-SQL? DATEADD() is a very useful function for manipulating date and time values. The following tutorial exercise shows you some good DATEADD() usage examples: -- Incrementing 1 year on a leap date DECLARE @birth_date DATETIME; SET @birth_date = '20... 2017-02-20, 1981👍, 0💬

Underflow and Overflow of FLOAT Values in SQL Server Transact-SQL
What Are the Underflow and Overflow Behaviors on FLOAT Literals in SQL Server Transact-SQL? If you enter a floating number that is too big or too small for the FLOAT data type, Transact-SQL will behave as: FLOAT(24) Underflow: If a floating number is too small for FLOAT(24), it will be stored as 0 w... 2017-04-19, 1919👍, 0💬

Downloading and Installing SQL Server Sample Scripts in SQL Server
How to download and install SQL Server 2005 Sample Scripts in SQL Server? If you want to learn from sample scripts provided by Microsoft, you should follow this tutorial to download and install them: 1. Go to the SQL Server 2005 Samples and Sample Databases download page. 2. Go to the x86 section in... 2019-11-08, 1916👍, 2💬

💬 2019-11-08 FYIcenter.com: @Nana, please follow AdventureWorksLT - Downloading and Installing the Sample Database in SQL Server tutorial.

💬 2019-10-31 Nana Jacob: Please i need to download AdventureWorksLT

Error: Imported Table Already Exists in Oracle
What Happens If the Imported Table Already Exists in Oracle? If the import process tries to import a table that already exists, the Data Pump Import utility will return an error and skip this table. The following exercise shows you a good example: >cd \oraclexe\app\oracle\product\1 0.2.0\serve... 2016-10-15, 1874👍, 0💬

Changing Your Own Password in MySQL
How To Change the Password for Your Own User Account in MySQL? If you want to change the password of your own user account, you should use your user account connect to the server "mysql" first. You should then use the "SET PASSWORD ..." command to change the password of the current user account. The... 2017-09-08, 1748👍, 0💬

sys.procedures - Listing All Stored Procedures in SQL Server
How To List All Stored Procedures in the Current Database in SQL Server Transact-SQL? If you want to see a list of stored procedures in your current database, you can use the system view, sys.procedures as shown in this tutorial exercise: USE FyiCenterData; GO SELECT * FROM sys.procedures; GO Name o... 2017-01-05, 1735👍, 0💬

sys.database_principals - Listing All User Names in SQL Server
How To List All User Names in a Database in SQL Server? If you want to see a list of all user names defined in a database, you can use the system view, sys.database_principals as shown in this tutorial exercise: -- Login with sa -- Select a database USE FyiCenterData; GO -- List all user names SELEC... 2017-08-25, 1710👍, 0💬

Connecting SQL Server Management Studio Express To a SQL Server in SQL Server
How to connect SQL Server Management Studio Express to SQL Server 2005 Express in SQL Server? Once you have SQL Server 2005 Express installed and running on your local machine, you are ready to connect SQL Server Management Studio Express to the server: Click Start > Programs > Microso... 2016-12-04, 1689👍, 0💬

DDL (Data Definition Language) Statements for Tables? in SQL Server
What are DDL (Data Definition Language) statements for tables in SQL Server? DDL (Data Definition Language) statements are statements to create and manage data objects in the database. The are three primary DDL statements to create and manage tables: CREATE TABLE - Creating a new table. ALTER TABLE ... 2016-11-20, 1668👍, 0💬

Error: Lock Wait Timeout Exceeded in MySQL
What Happens to Your Transactions When ERROR 1205 Occurred in MySQL? If your transaction receives the "Lock wait timeout exceeded" - ERROR 1205, MySQL server automatically terminates your transaction and rolls back your data changes of the entire transaction. This is why the error messages tells you... 2017-04-28, 1659👍, 0💬

WHILE ... Loops in SQL Server Transact-SQL
How to execute statements in loops in SQL Server Transact-SQL? How to use WHILE ... loops? You can use WHILE ... statements to execute statements in loops in Transact-SQL using these syntaxes: -- Loop with a single statement WHILE condition statement -- Loop with a statement block WHILE condition --... 2017-01-11, 1659👍, 0💬

CHAR(n) - Truncating/Padding Strings in SQL Server Transact-SQL
How Fixed Length Strings Are Truncated and Padded in SQL Server Transact-SQL? When the length of the input string does not match the storage size of the fixed length string data type CHAR(n). SQL Server will: If the input string of CHAR(n) has less than n bytes, it will be padded with space characte... 2017-05-13, 1640👍, 0💬

FLOOR, CEILING, ROUND - Converting Values to Integers in SQL Server
How To Convert Numeric Values to Integers in SQL Server Transact-SQL? Sometimes you need to round a numeric value into an integer. SQL Server 2005 offers you a number of ways to do this: FLOOR(value) - Returning the largest integer less than or equal to the input value. The returning data type is th... 2017-03-22, 1624👍, 0💬

Counting Rows with the COUNT(*) Function in SQL Server
How To Count Rows with the COUNT(*) Function in SQL Server? If you want to count the number of rows, you can use the COUNT(*) function in the SELECT clause. The following tutorial exercise shows you some good examples: SELECT COUNT(*) FROM fyi_links GO 7 SELECT COUNT(*) FROM fyi_links WHERE url LIKE... 2016-10-26, 1609👍, 0💬

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General MySQL Oracle SQL Server