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PHP MySQL: Char and Varchar Data Type Tag: mysql, database, field, data type, char, varchar   Category: PHP Database post: 28 Feb 2008 read: 1,512 php mysql basic step by step tutorial - part 5: Char() and Varchar() data type is the same in the principal but the amount of the memori requirement needs is different. The memory requirement needs for the type of char() data has the static character and the level of this need depends to the amount of character that is specified at the time of field declaration. Then, the level of the memory requirement needs of varchar() data type depends on how much the character weared plus 1 byte that is contain of the data of the amount of character weared. For further information, see the example below: Value CHAR(4) Depository memory VARCHAR(4) Depository memory " '' 4 bytes " 1 byte 'ab' 'ab ' 4 bytes 'ab' 3 bytes 'abcd' 'abcd' 4 bytes 'abcd' 5 bytes 'abcdefgh' 'abcd' 4 bytes 'abcd' 5 bytes Series this article: PHP MySQL: Connecting to Database Use mysql_connect() PHP MySQL: Making Database Use mysql_create_db() PHP MySQL: Making Table PHP MySQL: The Data Type of Field PHP MySQL: Char and Varchar Data Type PHP MySQL: Data Type of Date PHP MySQL: MySQL Syntax Orders PHP MySQL: Inserting Data PHP MySQL: Creating Form Insert Data PHP MySQL: Display Data PHP MySQL: mysql_fetch_row() Function PHP MySQL: mysql_fetch_array() Function PHP MySQL: Editing data PHP MySQL: Deleting data PHP MySQL: Adding Field Table PHP MySQL: Editing Field Table PHP MySQL: Deleting Field Table

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