Oracle Database Tutorials
Where to find Oracle database server tutorials? Here is a collection of tutorials, tips and FAQs for Oracle DBAs and Oracle database application developers. Clear explanations and simple examples provided can be used as learning tutorials or interview preparation guides. It doesn't matter whether yo... 2017-07-10, 7465👍, 2💬
"sys.tables" - Getting a List of All Tables in SQL Server
How To Get a List of All Tables with "sys.tables" View in SQL Server? If you want to see the table you have just created, you can use the "sys.tables" system view to get a list of all tables in the current database. The tutorial script gives you a good example: SELECT name, type_desc, create_date FR... 2018-03-29, 1268👍, 1💬
SQL Server Transact-SQL Tutorials
Where to find tutorials to answer some frequently asked questions on Microsoft SQL Server Transact-SQL? I want to know how to write database scripts to run on SQL Server. Here is a list of frequently asked questions and their answers compiled by FYIcenter.com DBA team about Microsoft SQL Server Tran... 2016-10-17, 1268👍, 0💬
NULLIF() - Replacing Given Values with NULL in SQL Server
How To Replace Given Values with NULL using NULLIF() in SQL Server Transact-SQL? Sometime you want to hide certain values by replacing them with NULL values. SQL Server offers you a nice function called NULLIF() to do this: NULLIF(expression, value) -- Returns NULL if "expression" equals to value" -... 2017-01-29, 1255👍, 0💬
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, 1253👍, 0💬
Windows Applications Connect to Oracle Servers in Oracle
How Can Windows Applications Connect to Oracle Servers in Oracle? A Windows application can connect to an Oracle server directly, if it knows how to use the Oracle TNS technology. A Windows application can connect to an Oracle server indirectly through Windows ODBC manager, because it offers ODBC dr... 2016-10-15, 1252👍, 0💬
CREATE VIEW - Creating a View on an Existing Table in SQL Server
How To Create a View on an Existing Table in SQL Server? If you want to a view on an existing table, you can use the CREATE VIEW statement in a simple syntax: CREATE VIEW view_name AS SELECT ... The tutorial exercise below shows you how to create a view to represent sub set of data stored in fyi_lin... 2016-11-05, 1248👍, 0💬
"IF ... ELSE IF ..." Statement Structures in SQL Server
How To Use "IF ... ELSE IF ..." Statement Structures in SQL Server Transact-SQL? "IF ... ELSE IF ..." statement structure is used to select one of the specified statements to be executed based on specified Boolean conditions. Here is the syntax of "IF ... ELSE IF ..." statement structure: IF conditi... 2017-01-11, 1239👍, 0💬
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, 1231👍, 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, 1207👍, 0💬
Calculating Age in Days, Hours and Minutes in SQL Server
How To Calculate Age in Days, Hours and Minutes in SQL Server Transact-SQL? On many Web sites, news items or blog articles are displayed with a publishing data and time represented in days, hours and minutes. To do this you can use the DATEDIFF() function with a simple algorithm as shown in the tuto... 2017-02-14, 1202👍, 0💬
Import One Table back from a Dump File in Oracle
How To Import One Table Back from a Dump File in Oracle? If you only want to import one table back to the database, you can use a dump file that was created by full export, schema export or a table export. The following tutorial exercise shows you how to import the "fyi_links" table from a dump file... 2016-10-15, 1191👍, 0💬
ISNULL() - Replacing NULL Values in Expressions in SQL Server
How To Replace NULL Values in Expressions using ISNULL() in SQL Server Transact-SQL? As you learned from previous tutorials, NULL values presented in expressions will cause the final results to be NULL. Sometimes, you want NULL values to be replaced with some default values, like 0, '', or 'NULL', s... 2017-02-03, 1177👍, 0💬
ROUND() - Rounding Values to Specific Precisions in SQL Server
How To Round a Numeric Value To a Specific Precision in SQL Server Transact-SQL? Sometimes you need to round a numeric value to a specific precision. For example, you may want to round values in your financial statement to the precision of 1000.00. This can be done by the ROUND() function with the f... 2017-03-11, 1176👍, 0💬
Getting Year, Month and Day Out of DATETIME Values in SQL Server
How To Get Year, Month and Day Out of DATETIME Values in SQL Server Transact-SQL? You can use DATEPART() to get any part of the DATETIME value. But to get year, month and day, you can use 3 specific functions: YEAR(), MONTH() and DAY(). These functions are equivalent to DATEPART() as: YEAR(date) = D... 2017-02-14, 1176👍, 0💬
What Is SQL Server Transact-SQL (T-SQL)?
What is SQL Server Transact-SQL (T-SQL)? SQL Server Transact-SQL, also called T-SQL, is an extension of the standard SQL (Structured Query Language). Transact-SQL was developed by Microsoft and Sybase. Microsoft's implementation ships in the Microsoft SQL Server product. Sybase uses the language in ... 2017-06-16, 1168👍, 0💬
Conditional Statements and Loops in SQL Server in SQL Server Transact-SQL
Where to find answers to frequently asked questions on Conditional Statements and Loops in SQL Server Transact-SQL? Here is a list of frequently asked questions and their answers compiled by FYIcenter.com team on Conditional Statements and Loops in SQL Server Transact-SQL. Clear answers are provided... 2017-01-11, 1167👍, 0💬
Dispaly Part Time in Days, Hours and Minutes in MySQL
How To Display a Past Time in Days, Hours and Minutes in MySQL? You have seen a lots of Websites are displaying past times in days, hours and minutes. If you want to do this yourself, you can use the TIMEDIFF() SQL function. Note that the TIMEDIFF() function can only handle time range within 839 hou... 2017-06-23, 1161👍, 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... 2017-08-25, 1153👍, 0💬
AND, OR, XOR, and NOT - Bitwise Operations in SQL Server
What Are Bitwise Operations in SQL Server Transact-SQL? Bitwise operations are binary operations performed on one or two binary strings. SQL Server supports 4 bitwise operations: & (Bitwise AND) - Performing the single bit Boolean operation "AND" on each bit position. | (Bitwise OR) - Perfor... 2017-02-25, 1151👍, 0💬
Formatting Time Zone in +/-hh:mm Format in SQL Server
How To Format Time Zone in +/-hh:mm Format in SQL Server Transact-SQL? From the previous tutorial, you know how to calculate the time zone value by using GETDATE() and GETUTCDATE() functions. But how can you format that time zone value in a nice looking format like +05:45 or -04:00? Unfortunately, S... 2017-02-08, 1149👍, 0💬
Using User Defined Functions in SQL Server Transact-SQL
Where to find answers to frequently asked questions on Using User Defined Functions in SQL Server Transact-SQL? Here is a list of frequently asked questions and their answers compiled by FYIcenter.com DBA team on Using User Defined Functions in SQL Server Transact-SQL. Clear answers are provided wit... 2016-12-28, 1142👍, 0💬
CREATE, ALTER and DROP Statements in MySQL
Where to find answers to frequently asked questions on CREATE, ALTER and DROP Statements in MySQL? Here is a list of frequently asked questions and their answers compiled by FYIcenter.com DBA team on CREATE, ALTER and DROP Statements in MySQL. Clear answers are provided with tutorial exercises on cr... 2018-03-13, 1141👍, 0💬
Downloading and Installing SQL Server 2005 Express Edition
Where to find answers to frequently asked questions on Downloading and Installing SQL Server 2005 Express Edition? Here is a list of frequently asked questions and their answers compiled by FYIcenter.com DBA team on Downloading and Installing SQL Server 2005 Express Edition. Clear answers are provid... 2016-12-08, 1130👍, 0💬
What Is Microsoft SQL Server in SQL Server
What is Microsoft SQL Server in SQL Server? Microsoft SQL Server is a relational database management system (RDBMS) developed by Microsoft. It runs on Windows systems and uses Transact-SQL as the query language. Microsoft SQL Server release history: 1993 - SQL Server 4.21 for Windows NT 1995 - SQL S... 2016-12-08, 1109👍, 0💬
How To Define an External Table in a Text File in Oracle? You can use the CREATE TABLE statement to ...
How To Provide Values to Stored Procedure Parameters in SQL Server Transact-SQL? If a stored procedu...
What is Microsoft SQL Server in SQL Server? Microsoft SQL Server is a relational database management...
Where to find answers to frequently asked questions on Managing Security, Login and User in SQL Serv...
How to change the data type of an existing column with "ALTER TABLE" statements in SQL Server? Somet...