Find all needed information about Varchar Character Support. Below you can see links where you can find everything you want to know about Varchar Character Support.
https://stackoverflow.com/questions/7038213/which-special-characters-are-allowed-in-sql-server-varchar-fields
Run this to "get" all characters permitted in a char() and varchar(): ;WITH AllNumbers AS ( SELECT 1 AS Number UNION ALL SELECT Number+1 FROM AllNumbers WHERE Number+1<256 ) SELECT Number AS ASCII_Value,CHAR(Number) AS ASCII_Char FROM AllNumbers OPTION (MAXRECURSION 256)
https://www.sqlservercentral.com/forums/topic/which-%e2%80%9cspecial%e2%80%9d-characters-are-allowed-in-sql-server-varchar-fields
Oct 15, 2013 · Which “special” characters are allowed in SQL Server varchar fields? – Learn more on the SQLServerCentral forums
https://www.ibm.com/support/knowledgecenter/en/SSGU8G_12.1.0/com.ibm.sqlr.doc/ids_sqr_148.htm
VARCHAR(m,r) 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 …
https://www.mssqltips.com/sqlservertip/4322/sql-server-differences-of-char-nchar-varchar-and-nvarchar-data-types/
char - is the SQL-92 synonym for character. Data is padded with blanks/spaces to fill the field size. Fixed length data type. nchar - is the SQL-92 synonym for national char and national character. Fixed length data type. varchar - is the SQL-92 synonym for character varying. Variable length data type.Author: Sherlee Dizon
https://www.databasestar.com/char-varchar-varchar2/
Feb 06, 2017 · The difference between VARCHAR and VARCHAR2 in Oracle is that VARCHAR is an ANSI-standard data type that supports a distinction between NULL and empty strings. Oracle has not yet implemented this distiction, so at the moment, VARCHAR and VARCHAR2 …
https://dev.mysql.com/doc/refman/5.7/en/charset-national.html
VARCHAR(10) CHARACTER SET utf8 NATIONAL VARCHAR(10) NVARCHAR(10) NCHAR VARCHAR(10) NATIONAL CHARACTER VARYING(10) NATIONAL CHAR VARYING(10) You can use N'literal' (or n'literal') to create a string in the national character set.
https://stackoverflow.com/questions/612430/when-must-we-use-nvarchar-nchar-instead-of-varchar-char-in-sql-server
Collations in SQL Server provide sorting rules, case, and accent sensitivity properties for your data. Collations that are used with character data types such as char and varchar dictate the code page and corresponding characters that can be represented for that data type.
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