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Is there a Contains function in SQL?
At its core, the CONTAINS() function takes one substring and does a search to see if it’s in another string. For Microsoft SQL Server, CONTAINS() allows for a full text pattern match SQL search queries on your table. It returns a boolean value that indicates whether the function is truthy or falsy.
What does the symbol do in SQL?
The @CustID means it’s a parameter that you will supply a value for later in your code. This is the best way of protecting against SQL injection. Create your query using parameters, rather than concatenating strings and variables.
How do I reverse a string in SQL?
The REVERSE() function accepts a string argument and returns the reverse order of that string. The following shows the syntax of the REVERSE() function. The input_string is a character string expression. Otherwise, you must use CAST to explicitly convert the input string to VARCHAR .
Does SQL have XOR?
MySQL XOR operator checks two operands (or expressions) and returns TRUE if one or the other but not both is TRUE. MySQL Logical XOR returns a NULL when one of the operands is NULL.
What are the features of SQL Server 2008 SP2 Express?
Microsoft SQL Server 2008 R2 Express with Service Pack 2 is a free, feature-rich edition of SQL Server that is ideal for learning, developing, powering desktop, web & small server applications, and for redistribution by ISVs. Key Features Offered By SQL Server 2008 R2 SP2 Express: Supports stored procedures, triggers, functions, and views.
How does a function in SQL Server work?
Functions that take non-character inputs and return a character string use the default collation of the current database for the output. Functions that take multiple character string inputs and return a character string use the rules of collation precedence to set the collation of the output string.
How to install SQL Server 2008 R2 SP2?
To install or update SQL Server 2008 R2 SP2 one will need adminstrative rights on the computer. Step 2: Download SQL Server Express by clicking the SQLEXPR.EXE or SQLEXPR32.EXE link on this page. To start the installation immediately, click Run. To install SQL Server Express at a later time, click Save.
How are ranking functions used in SQL Server?
You can use analytic functions to compute moving averages, running totals, percentages, or top-N results within a group. Ranking functions return a ranking value for each row in a partition.