General MySQL Oracle SQL Server

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Looping through Query Output Rows in MySQL
How To Query Tables and Loop through the Returning Rows in MySQL? The best way to query tables and loop through the returning rows is to run the SELECT statement with the mysql_query() function, catch the returning object as a result set, and loop through the result with the mysql_fetch_assoc() func... 2017-06-28, 8243🔥, 0💬

Quoting Text Values in MySQL
How To Quote Text Values in SQL Statements in MySQL? Text values in SQL statements should be quoted with single quotes ('). If the text value contains a single quote ('), it should be protected by replacing it with two single quotes (''). In SQL language syntax, two single quotes represents one sing... 2017-06-28, 2333🔥, 0💬

Deleting Existing Rows in MySQL
How To Delete Existing Rows in a Table in MySQL? If you want to remove a row from a table, you can use the DELETE statement with a WHERE clause to identify the row. The following sample script deletes one row: &lt;?php include "mysql_connection.php"; $sql = "DELETE FROM fyi_links WHERE id = 1102... 2017-06-28, 2207🔥, 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, 3608🔥, 0💬

Query Multiple Tables Jointly in MySQL
How To Query Multiple Tables Jointly in MySQL? If you want to query information stored in multiple tables, you can use the SELECT statement with a WHERE condition to make an inner join. Assuming that you have 3 tables in a forum system: "users" for user profile, "forums" for forums information, and ... 2017-06-23, 3518🔥, 0💬

Key Word Search in Tables in MySQL
How To Perform Key Word Search in Tables in MySQL? The simplest way to perform key word search is to use the SELECT statement with a LIKE operator in the WHERE clause. The LIKE operator allows you to match a text field with a keyword pattern specified as '%keyword%', where (%) represents any number ... 2017-06-23, 2476🔥, 0💬

Quoting Date and Time Values in MySQL
How To Quote Date and Time Values in SQL Statements in MySQL? If you want to provide date and time values in a SQL statement, you should write them in the format of "yyyy-mm-dd hh:mm:ss", and quoted with single quotes ('). The tutorial exercise below shows you two INSERT statements. The first one us... 2017-06-23, 2313🔥, 0💬

Build WHERE Criteria with Web Form Data in MySQL
How To Build WHERE Criteria with Web Form Search Fields in MySQL? If your PHP script is linked to a Web form which takes search key words for multiple data fields. For example, your Web form asks your visitor to search for Website links with a URL search field, a Website title search field, a descri... 2017-06-23, 2283🔥, 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, 4418🔥, 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, 4357🔥, 0💬

What Is SQL Language
What Is SQL Language? SQL, SEQUEL (Structured English Query Language), is a language for RDBMS (Relational Database Management Systems). During the 1970s, a group at IBM's San Jose research center developed a database system "System R" based upon Codd's model. Structured English Query Language ("SEQ... 2017-06-16, 3020🔥, 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, 2934🔥, 0💬

Versions of SQL Server Transact-SQL
How do I tell what version of Transact-SQL my SQL Server is using? The Transact-SQL version is the same as the SQL Server. You can determine the SQL Server version using the following Transact-SQL statement: SELECT @@version ------------------------------ ------------------------------ ------------Mi... 2017-06-16, 2932🔥, 0💬

Statement Batch in SQL Server Transact-SQL
What is statement batch in SQL Server Transact-SQL? A statement batch is a group of one or more Transact-SQL statements sent at the same time from an application to SQL Server for execution. SQL Server compiles the statements of a batch into a single executable unit, called an execution plan. The st... 2017-05-29, 2843🔥, 0💬

Start and End of Statement in SQL Server Transact-SQL
How to start and end a statement in SQL Server Transact-SQL? Here are some simple rules about writing statements in SQL Server Transact-SQL: A Transact-SQL statement must be started with a pre-defined statement keyword. A Transact-SQL statement must be ended with a new line (/n) or a semicolon (;) c... 2017-05-29, 2643🔥, 0💬

What Is a Statement in SQL Server Transact-SQL
What is a statement in SQL Server Transact-SQL? A statement in SQL Server Transact-SQL is a single smallest execution unit. Here are some examples of Transact-SQL statements: "PRINT 'Hello World!';" - An output statement that print a character string to the console. "SELECT GETDATE();" - A query sta... 2017-05-29, 2628🔥, 0💬

Comments in SQL Server Transact-SQL Statements
How to enter comments in SQL Server Transact-SQL statements? There are 2 ways to enter comments within Transact-SQL statements: Starting comments with two dashes "--": Everything between "--" and the end of the line is treated as a comment. Entering comments between "/*" and "*/": Everything between... 2017-05-29, 2503🔥, 0💬

Compilation Error in a Statement Batch in SQL Server
What happens to a Transact-SQL statement batch if there is a compilation error? If a Transact-SQL statement batch has multiple statements, and one of them has compilation error, none of the statements in the batch will be executed. The tutorial exercise below gives you some good examples: SELECT get... 2017-05-29, 2465🔥, 0💬

SQL Server Transact-SQL Language References
Where to find SQL Server Transact-SQL language references? You can find SQL Server Transact-SQL language references on Microsoft Website: Transact-SQL Reference for SQL Server 2016 Transact-SQL Reference for SQL Server 2014 Transact-SQL Reference for SQL Server 2012 Transact-SQL Reference for SQL Se... 2017-05-20, 4071🔥, 0💬

Constant or Data Literal in SQL Server Transact-SQL
What Is a Constant or Literal in SQL Server Transact-SQL? A constant, or data literal, is a symbolic expression that represents a specific value of a specific data type in SQL Server Transact-SQL. Constants or literals are used commonly as the default values for table columns, variables, and paramet... 2017-05-20, 3227🔥, 0💬

Data Literals in SQL Server Transact-SQL
Where to find answers to frequently asked questions on data literals in Microsoft SQL Server Transact-SQL? I am new to Transact-SQL and SQL Server. Here is a list of frequently asked questions and their answers compiled by FYIcenter.com team on data literals in Microsoft SQL Server Transact-SQL: Con... 2017-05-20, 2836🔥, 0💬

Types of Data Literals in SQL Server Transact-SQL
What are different types of data literals supported in SQL Server Transact-SQL? There are 8 types of data literals supported in SQL Server Transact-SQL: 1. Integer Number Literals - Sequences of numbers prefixed with +/- sign if needed. Integer number literals are used to represent integer values. F... 2017-05-20, 2674🔥, 0💬

Single-byte String Literals in SQL Server Transact-SQL
What are single-byte string literals supported in SQL Server Transact-SQL? Single-byte string literals in Transact-SQL are sequences of characters enclosed in single quotes. String literals are used to provide values to string variables or table columns like CHAR(40), VARCHAR(40), etc. String litera... 2017-05-20, 2481🔥, 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, 6055🔥, 0💬

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General MySQL Oracle SQL Server