Collate Comment Work For Free

You can use the COLLATE clause to apply a character expression to a certain collation. Character literals and variables are assigned the default collation of the current database. Column references are assigned the definition collation of the column.

In a database, a collation is a set of rules that determine how data is sorted and compared, usually applied to how text data is sorted in different languages for the purpose of indexing text data and for making comparisons between text values. Different languages have different character sets and ordering.

COLLATE is a postfix unary operator. It has the same precedence as other unary operators, but it is evaluated after all prefix unary operators have been evaluated. You can apply this operator to expressions of type VARCHAR2 , CHAR , LONG , NVARCHAR , or NCHAR .

Collation provides the sorting rules, case, and accent sensitivity properties for the data in the database. For example, when you run a query using the ORDER BY clause, collation determines whether or not uppercase letters and lowercase letters are treated the same.

Latin1_General_CI_AS is a Windows collation and can use an index when comparing unicode and non unicode data, where SQL_Latin1_General_CP1_CI_AS is a SQL collation and cannot do this.

The Latin1_General_CI_AS collation is a Windows collation and the rules around sorting unicode and non-unicode data are the same. A Windows collation as per this example can still use an index if comparing unicode and non-unicode data albeit with a slight performance hit.

A collation is a set of rules that defines how to compare and sort character strings. Each collation in MySQL belongs to a single character set. Every character set has at least one collation, and most have two or more collations. A collation orders characters based on weights.

Ing the SQL Server Books Online, the characters included in range searches depend on the sorting rules of the collation. Collation Latin1_General_CS_AS uses dictionary order so both upper and lower case characters of the specified range are included.

A collation specifies the bit patterns that represent each character in a dataset. Collations also determine the rules that sort and compare data. SQL Server supports storing objects that have different collations in a single database.

A collation specifies the bit patterns that represent each character in a dataset. Collations also determine the rules that sort and compare data. SQL Server supports storing objects that have different collations in a single database.