General MySQL Oracle SQL Server

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Is SQL Server Transact-SQL Case Sensitive?
Is SQL Server Transact-SQL case sensitive? No. Transact-SQL is not case sensitive. Like the standard SQL, you can type in your Transact-SQL statement in upper case or lower case. However, you should use upper case for all key words in Transact-SQL statements as a best practice. The following example... 2017-06-16, 6481🔥, 0💬

"ALTER USER" - Changing the Name of a Database User in SQL Server
How To Change the Name of a Database User in SQL Server? If you want to change the name of an existing database user, you can use the "ALTER USER" statement as shown in the tutorial exercise below: -- Login with "sa" USE FyiCenterData; GO ALTER USER Fyi_User WITH NAME = Dba_User; GO -- List all user... 2022-01-24, 6472🔥, 0💬

Verifying a User Name with SQLCMD Tool in SQL Server
How To Verify a User name with SQLCMD Tool in SQL Server? The quickest way to verify a user name in a database is probably to use the SQLCMD tool. You can connect to the server, select the database, and check which user name is linked the current login name as shown below. Start a command window and... 2017-08-25, 6463🔥, 0💬

Connect ASP Pages to Oracle Servers in Oracle
How To Connect ASP Pages to Oracle Servers in Oracle? If you are running Windows IIS Web server and serving ASP Web pages, you can get data from Oracle servers into your ASP pages through ODBC drivers. To do this, you need to install the correct Oracle ODBC driver and define a DSN on the IIS Web ser... 2016-10-15, 6437🔥, 0💬

Start with a Minimum Initialization Parameter File in Oracle
How To Start Instance with a Minimal Initialization Parameter File in Oracle? The sample initialization parameter file provided by Oracle seems to be not working. But we can try to start the new instance with a minimal initialization parameter file (PFile). First you can create another PFile, $ORACL... 2018-05-08, 6427🔥, 0💬

Converting Unicode Strings to Non-Unicode Strings in SQL Server
How To Convert a Unicode Strings to Non-Unicode Strings in SQL Server Transact-SQL? Since Unicode character set is different than code page based (non-Unicode) character set, converting Unicode strings to non-Unicode strings may result in wrong characters or missing characters. So you should avoid c... 2017-03-07, 6403🔥, 0💬

Concatenating Two Character Strings in SQL Server
How To Concatenate Two Character Strings Together in SQL Server Transact-SQL? Concatenating two character strings together is most commonly used string operation. SQL Server 2005 allows to concatenate two character strings into a single string with the (+) operator. The following tutorial exercise s... 2017-03-11, 6360🔥, 0💬

StartDB.bat Failed to Start the XE Instance in Oracle
What To Do If the StartDB.bat Failed to Start the XE Instance in Oracle? If StartDB.bat failed to start the XE instance, you need to try to start the instance with other approaches to get detail error messages on why the instance can not be started. One good approach to start the default instance is... 2020-09-30, 6342🔥, 0💬

Difference Between GETDATE() and GETUTCDATE() in SQL Server
What Is the Difference Between GETDATE() and GETUTCDATE() in SQL Server Transact-SQL? The difference between GETDATE() and GETUTCDATE() is time zone number of the SQL Server machine. The tutorial exercise below gives you a good example: DECLARE @local_time DATETIME; DECLARE @gmt_time DATETIME; SET @... 2017-02-14, 6328🔥, 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 &gt; Programs &gt; Microso... 2016-12-04, 6322🔥, 0💬

Getting Help Information from the Server in MySQL
How To Get Help Information from the Server in MySQL? While you are at the "mysql&gt;" prompt, you can get help information from the server by using the "HELP" command. The tutorial exercise below shows sevearal examples: &gt;cd \mysql\bin &gt;mysql -u root mysql&gt; HELP; ... List o... 2018-02-08, 6293🔥, 0💬

General Questions on Microsoft SQL Server Transact-SQL
Where to find answers to frequently asked questions in general areas of Microsoft SQL Server Transact-SQL? I am new to Transact-SQL. Here is a list of frequently asked questions and their answers compiled by FYIcenter.com team in general areas of Microsoft SQL Server Transact-SQL: What Is SQL Langua... 2017-06-16, 6227🔥, 0💬

Escape Special Characters in MySQL
How To Escape Special Characters in SQL statements in MySQL? There are a number of special characters that needs to be escaped (protected), if you want to include them in a character string. Here are some basic character escaping rules: The escape character (\) needs to be escaped as (\\). The singl... 2018-04-12, 6213🔥, 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, 6135🔥, 0💬

Where Is the Export Dump File Located in Oracle
Where Is the Export Dump File Located in Oracle? If you are not specifying the dump directory and file name, the dump file will be stored in the default dump directory with the default file name. The tutorial exercise below tells you find what is your default dump directory and locate the dump file.... 2016-10-15, 6107🔥, 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, 6083🔥, 0💬

COERCIBILITY() - Character Collation Coercibility
How to detect the collation coercibility associated to a given character string using the COERCIBILITY() function? COERCIBILITY(str) is a MySQL built-in function that returns the collation coercibility associated to a given character string. A collation coercibility refers to the coercibility index,... 2025-10-14, 6072🔥, 0💬

sqlservr.exe - Process - SQL Server (SQLEXPRESS) in SQL Server
What is sqlservr.exe - Process - SQL Server (SQLEX?PRESS) in SQL Server? Process sqlservr.exe is the Microsoft SQL Server system service installed as part of the Microsoft SQL Server 2005 Express Edition. mscorsvw.exe process and program file info: CPU usage: 00% Memory usage: 1,316K Launching metho... 2016-12-08, 6066🔥, 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, 5970🔥, 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, 5920🔥, 0💬

Entering 0.001 Second in DATETIME in SQL Server Transact-SQL
Why I Can Not Enter 0.001 Second in DATETIME values in SQL Server Transact-SQL? If you enter milliseconds in data and time values, they will be rounded up to 10/3 millisecond increments, because DATETIME data type uses 4 bytes to store the time of the day. A 4-byte integer can only give an accuracy ... 2017-04-15, 5794🔥, 0💬

sys.sql_modules - Getting View Definitions Back in SQL Server
How To Get the Definition of a View Out of the SQL Server in SQL Server? If you want get the definition of an existing view back from the SQL Server, you can use the system view called sys.sql_modules, which stores definitions of views and procedures. The sys.sql_modules holds view definitions ident... 2016-11-05, 5794🔥, 0💬

Transaction Management: Commit or Rollback in MySQL
Where to find answers to frequently asked questions on Transaction Management: Commit or Rollback in MySQL? Here is a list of frequently asked questions and their answers compiled by FYIcenter.com DBA team on Transaction Management: Commit or Rollback in MySQL. Clear answers are provided with tutori... 2017-08-08, 5787🔥, 0💬

Create a Simple Stored Procedure in Oracle
How To Create a Stored Program Unit in Oracle? If you want to create a stored program unit, you can use the CREATE PROCEDURE or FUNTION statement. The example script below creates a stored program unit: SQL&gt; set serveroutput on; SQL&gt; CREATE PROCEDURE Hello AS 2 BEGIN 3 DBMS_OUTPUT.PUT_... 2019-03-20, 5768🔥, 0💬

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General MySQL Oracle SQL Server