VARBINARY(MAX) Tames the BLOB

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The storage size is n bytes. The data that is entered can be 0 bytes in length. When n is not specified in a data definition or variable declaration statement, the default length is 1. When n is not specified with the CAST function, the default length is When data is converted from a string data type charvarcharncharnvarcharbinaryvarbinarytextntextor image to a binary or varbinary data type of unequal length, SQL Server pads or truncates the data on the right.

When other data types are converted to binary or varbinarythe data is padded or truncated on the left. Padding is achieved by using hexadecimal zeros. Converting data to the binary and varbinary data types is useful if binary data is the easiest way to move around data. Converting any value of any type to a binary value of large enough size and then back to the type, always results in the same value if both conversions are taking place on the same version of SQL Server.

The binary representation of a value might change from version to version of SQL Server. You can convert intsmallintand tinyint to binary or varbinarybut if you convert the binary value back to an integer value, this value will be different from the original integer value if truncation has occurred. For example, the following SELECT statement shows that the integer value is usually stored as a binary 0xe However, the following SELECT statement shows that if the binary target is too small to hold the entire value, the leading digits are silently truncated so that the same number is stored as 0xe The following batch shows that this silent truncation can affect arithmetic operations without raising an error:.

Conversions between any data type and the binary data types are not guaranteed to be the same between versions of SQL Server. The feedback system for this content will be changing soon. Old comments will not be carried over. If content within a comment thread is important to you, please save a copy. For more information on the upcoming change, we invite you to read our blog post.

Arguments binary [ n ] Fixed-length binary data with a length of n bytes, where n is a value from 1 through 8, Remarks When n is not specified in a data definition or variable declaration statement, the default length is 1. Data type Use when Converting binary and varbinary data When data is converted from a string data type charvarcharncharnvarcharbinaryvarbinarytextntextor image to a binary or varbinary data type of unequal length, SQL Server pads or truncates the data on the right.

Note Conversions between any data type and the binary data types are not guaranteed to be the same between versions of SQL Server. Note The feedback system for this content will be changing soon.

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