Convert binary to string sql server 2008
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When expression is float or real , style can be one of the values shown in the following table. When expression is money or smallmoney , style can be one of the values shown in the following table. No commas every three digits to the left of the decimal point, and two digits to the right of the decimal point; for example, Commas every three digits to the left of the decimal point, and two digits to the right of the decimal point; for example, 3, No commas every three digits to the left of the decimal point, and four digits to the right of the decimal point; for example, When expression is xml , style can be one of the values shown in the following table.
Use default parsing behavior that discards insignificant white space and does not allow for an internal DTD subset. Preserve insignificant white space. This style setting sets the default xml: If enabled, the server can use the following information that is provided in an internal DTD subset to perform nonvalidating parse operations.
The parser will ignore external DTD subsets. It also does not evaluate the XML declaration to see whether the standalone attribute is set yes or no , but instead parses the XML instance as if it is a stand-alone document. When expression is binary n , varbinary n , char n , or varchar n , style can be one of the values shown in the following table. Style values that are not listed in the table return an error. Each character or byte is converted 1: The expression must be composed of an even number of hexadecimal digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F, a, b, c, d, e, f.
If the style is set to 1 the characters 0x must be the first two characters in the expression. If the expression contains an odd number of characters or if any of the characters are invalid an error is raised. Each binary character is converted into two hexadecimal characters.
The characters 0x will be added to the left of the converted result for style 1. The following illustration shows all explicit and implicit data type conversions that are allowed for SQL Server system-supplied data types. When you convert between datetimeoffset and the character types char , varchar , nchar , and nvarchar the converted time zone offset part should always be double digits for both HH and MM for example, Because Unicode data always uses an even number of bytes, use caution when you convert binary or varbinary to or from Unicode supported data types.
For example, the following conversion does not return a hexadecimal value of 41; it returns Large-value data types exhibit the same implicit and explicit conversion behavior as their smaller counterparts, specifically the varchar , nvarchar and varbinary data types. However, you should consider the following guidelines:. Conversion from image to varbinary max and vice-versa is an implicit conversion, and so are conversions between text and varchar max , and ntext and nvarchar max.
Conversion from large-value data types, such as varchar max , to a smaller counterpart data type, such as varchar , is an implicit conversion, but truncation will occur if the large value is too big for the specified length of the smaller data type. Conversion from varchar , nvarchar , or varbinary to their corresponding large-value data types is performed implicitly.
For information about how to convert Microsoft. When you explicitly or implicitly cast the xml data type to a string or binary data type, the content of the xml data type is serialized based on a set of rules. For information about how to convert from other data types to the xml data type, see Generating XML Instances. Automatic data type conversion is not supported for the text and image data types.
You can explicitly convert text data to character data, and image data to binary or varbinary , but the maximum length is bytes. If you try an incorrect conversion such as trying to convert a character expression that includes letters to an int , SQL Server returns an error message.
If the input is not a character string, the output has the default collation of the database, and a collation label of coercible-default. When you convert character or binary expressions char , nchar , nvarchar , varchar , binary , or varbinary to an expression of a different data type, data can be truncated, only partially displayed, or an error is returned because the result is too short to display.
Conversions to char , varchar , nchar , nvarchar , binary , and varbinary are truncated, except for the conversions shown in the following table. SQL Server guarantees that only roundtrip conversions, conversions that convert a data type from its original data type and back again, will yield the same values from version to version.
The following example shows such a roundtrip conversion:. Do not try to construct binary values and then convert them to a data type of the numeric data type category. SQL Server does not guarantee that the result of a decimal or numeric data type conversion to binary will be the same between versions of SQL Server.
When you convert data types that differ in decimal places, sometimes the result value is truncated and at other times it is rounded. The following table shows the behavior. Conversion of float values that use scientific notation to decimal or numeric is restricted to values of precision 17 digits only.
Any value with precision higher than 17 rounds to zero. When you convert data types in which the target data type has fewer decimal places than the source data type, the value is rounded.
SQL Server returns an error message when nonnumeric char , nchar , varchar , or nvarchar data is converted to int , float , numeric , or decimal. SQL Server also returns an error when an empty string " " is converted to numeric or decimal. However, this is not true for the styles listed in the following table. For these styles, the conversions depend on the language settings.
The following table lists the styles for which the string-to-datetime conversion is nondeterministic. Each example retrieves the name of the product for those products that have a 3 in the first digit of their list price and converts their ListPrice to int. This result is converted to an int data type after being rounded to the nearest whole number. The following example concatenates noncharacter, nonbinary expressions by using CAST. This example converts a string with white space, text and markup into typed XML and removes all insignificant white space boundary white space between nodes:.