What is the text data type in SQL Server?
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. Depending on the character string, the storage size may be less than 2,147,483,647 bytes.
What data type is text?
The TEXT data type stores any kind of text data. It can contain both single-byte and multibyte characters that the locale supports. The term simple large object refers to an instance of a TEXT or BYTE data type.
What is difference between text and VARCHAR in SQL Server?
Some Differences Between VARCHAR and TEXT The VAR in VARCHAR means that you can set the max size to anything between 1 and 65,535. TEXT fields have a fixed max size of 65,535 characters. A VARCHAR can be part of an index whereas a TEXT field requires you to specify a prefix length, which can be part of an index.
When should I use text in SQL Server?
TEXT is used for large pieces of string data. If the length of the field exceeed a certain threshold, the text is stored out of row. These length limitations do not concern VARCHAR(MAX) in SQL Server 2005, which may be stored out of row, just like TEXT .
What is NVARCHAR vs VARCHAR?
The key difference between varchar and nvarchar is the way they are stored, varchar is stored as regular 8-bit data(1 byte per character) and nvarchar stores data at 2 bytes per character. Due to this reason, nvarchar can hold upto 4000 characters and it takes double the space as SQL varchar.
What is VARCHAR data type?
The VARCHAR data type stores character strings of varying length that contain single-byte and (if the locale supports them) multibyte characters, where m is the maximum size (in bytes) of the column and r is the minimum number of bytes reserved for that column.
What are the text data type in DBMS?
TEXT is the family of column type intended as high-capacity character storage. The actual TEXT column type is of four types-TINYTEXT, TEXT, MEDIUMTEXT and LONGTEXT. The four TEXT types are very similar to each other; the only difference is the maximum amount of data each can store.
How do you select text in SQL?
There are several ways to select text as shown below, including the ability to select and edit columns.
- Using SHIFT to Select Text.
- Using SHIFT+ALT to Select Columns.
- Using SHIFT+ALT to Select Columns and Insert Text.
- Using CTRL+SHIFT+END to Select Text.
- Using CTRL+SHIFT+HOME to Select Text.
- Using CTRL+A to Select All Text.
Should I use TEXT or VARCHAR?
TEXT: The Short Answer. If you’re looking for a TL;DR, it’s this: use VARCHAR if your data is of variable length and you know it fits into VARCHAR’s 65,535 character limit. In most circumstances, VARCHAR provides better performance, it’s more flexible, and can be fully indexed.
What is difference between CHAR VARCHAR and TEXT?
CHAR items, which are fixed length, are the fastest to store and retrieve but can waste storage space. VARCHAR, a variable-length string, can be slower to store and retrieve but does not waste storage space. TEXT is a character BLOB that requires more storage space and I/O than the other two.
What is difference between nchar and VARCHAR?
nchar is fixed-length and can hold unicode characters. it uses two bytes storage per character. varchar is of variable length and cannot hold unicode characters. it uses one byte storage per character.