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mysqld --character-set-server=latin1 --collation-server=latin1_swedish_ci
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mysql> show variables like 'character_set_server%';
+----------------------+--------+
| Variable_name        | Value  |
+----------------------+--------+
| character_set_server | latin1 |
+----------------------+--------+
1 row in set (0.00 sec)
mysql> show variables like 'collation_server%';
+------------------+-------------------+
| Variable_name    | Value             |
+------------------+-------------------+
| collation_server | latin1_swedish_ci |
+------------------+-------------------+
1 row in set (0.00 sec)
    
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#include <mysql.h>
#define host "localhost" 
#define username "root"
#define password "123"
#define database "oa"
MYSQL *conn;
int main() 
{
MYSQL_RES *res_set;
MYSQL_ROW row;
unsigned int i,ret;
FILE *fp;
MYSQL_FIELD *field;
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    id         INT NOT NULL,
    last_name  CHAR(30) NOT NULL,
    first_name CHAR(30) NOT NULL,
    PRIMARY KEY (id),
    INDEX name (last_name,first_name)
); 
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