How big is a TEXT field in SQL?

String Data Types

Data type Description
TINYTEXT Holds a string with a maximum length of 255 characters
TEXT(size) Holds a string with a maximum length of 65,535 bytes
BLOB(size) For BLOBs (Binary Large Objects). Holds up to 65,535 bytes of data
MEDIUMTEXT Holds a string with a maximum length of 16,777,215 characters

How do I get the size of a field in SQL?

Use COL_LENGTH() to Get a Column’s Length in SQL Server In SQL Server, you can use the COL_LENGTH() function to get the length of a column. More specifically, the function returns the defined length of the column, in bytes. The function accepts two arguments: the table name, and the column name.

What is the max size of a TEXT field in SQL Server?

The ISO synonym for ntext is national text. Variable-length non-Unicode data in the code page of the server and with a maximum string length of 2^31-1 (2,147,483,647). When the server code page uses double-byte characters, the storage is still 2,147,483,647 bytes.

How do I find the maximum length of a TEXT column in SQL?

Use the built-in functions for length and max on the description column: SELECT MAX(LEN(DESC)) FROM table_name; Note that if your table is very large, there can be performance issues.

What is the maximum length of TEXT data type?

65,535 characters
The standard TEXT data object is sufficiently capable of handling typical long-form text content. TEXT data objects top out at 64 KB (expressed as 2^16 -1) or 65,535 characters and requires a 2 byte overhead.

What is the length of TEXT in MySQL?

TEXT is a string data type that can store up to 65,535 characters. TEXT is commonly used for brief articles. LONGTEXT is a string data type with a maximum length of 4,294,967,295 characters.

How do I find the size of a column?

Suppose we square column, so area of square =a2, hence a2 = 54925mm2, a=√54925mm2=234mm, width and depth of column =234mm×234mm, taking in round figure=230mm×300mm(9″×12″) for rectangular column.

How do I find the size of a VARCHAR in SQL?

You can use the LEN function () to find the length of a string value in SQL Server, for example, LEN (emp_name) will give you the length stored in the emp_name string. Remember that this is different from the actual length you specified when creating the table, for example, emp_name VARCHAR (60).

How do I store a large string in SQL?

n defines the string length and can be a value from 1 through 8,000. max indicates that the maximum storage size is 2^31-1 bytes (2 GB). DECLARE @longText varchar(max); SET @longText = REPLICATE(‘X’, 8000); SET @longText = @longText + REPLICATE(‘X’, 8000); SELECT DATALENGTH(@longText); Returns 16 K of characters.

What does VARCHAR 30 mean?

The CHAR and VARCHAR types are declared with a length that indicates the maximum number of characters you want to store. For example, CHAR(30) can hold up to 30 characters. The length of a CHAR column is fixed to the length that you declare when you create the table. The length can be any value from 0 to 255.

What is the default size of text data type?

Answer. Explanation: Default size is 2,048 bytes. Stores single-byte or multibyte text strings of fixed length (up to 32,767 bytes); supports localized collation of text data.