¿mysql_stmt_bind_param under windows bug?

¿mysql_stmt_bind_param under windows bug?

am 22.06.2006 01:32:28 von javier.ariasgonzalez

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I tried to execute the example code (see below) from the function =
mysql_stmt_execute I found in mysql 4.1 documentation =
(http://dev.mysql.com/doc/refman/4.1/en/mysql-stmt-execute.h tml). This =
source code runs perfect under linux red hat with version 4.1.7 but it =
prints out an error if I try to run it under windows XP SP2.

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This is the output of this code

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prepare, INSERT successful

total parameters in INSERT: 3

mysql_stmt_bind_param() failed

Using unsupported buffer type: 838860800 (parameter: 2)

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It seems that the function mysql_stmt_bind_param is not working under =
this environment.=20

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I tried installing version 4.1.20 and linking my program with the new =
library but the result is the same.

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Is that a bug of windows version? Can anyone help?

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Thanks in advanced

Javier Arias

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/*********************************************************** *************=
************************************************************ *************=
****/

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#define STRING_SIZE 50

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#define DROP_SAMPLE_TABLE "DROP TABLE IF EXISTS test_table"

#define CREATE_SAMPLE_TABLE "CREATE TABLE test_table(col1 INT,\

col2 VARCHAR(40),\

col3 SMALLINT,\

col4 TIMESTAMP)"

#define INSERT_SAMPLE "INSERT INTO test_table(col1,col2,col3) =
VALUES(?,?,?)"

=20

MYSQL_STMT *stmt;

MYSQL_BIND bind[3];

my_ulonglong affected_rows;

int param_count;

short small_data;

int int_data;

char str_data[STRING_SIZE];

unsigned long str_length;

my_bool is_null;

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if (mysql_query(mysql, DROP_SAMPLE_TABLE))

{

fprintf(stderr, " DROP TABLE failed\n");

fprintf(stderr, " %s\n", mysql_error(mysql));

exit(0);

}

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if (mysql_query(mysql, CREATE_SAMPLE_TABLE))

{

fprintf(stderr, " CREATE TABLE failed\n");

fprintf(stderr, " %s\n", mysql_error(mysql));

exit(0);

}

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/* Prepare an INSERT query with 3 parameters */

/* (the TIMESTAMP column is not named; the server */

/* sets it to the current date and time) */

stmt =3D mysql_stmt_init(mysql);

if (!stmt)

{

fprintf(stderr, " mysql_stmt_init(), out of memory\n");

exit(0);

}

if (mysql_stmt_prepare(stmt, INSERT_SAMPLE, strlen(INSERT_SAMPLE)))

{

fprintf(stderr, " mysql_stmt_prepare(), INSERT failed\n");

fprintf(stderr, " %s\n", mysql_stmt_error(stmt));

exit(0);

}

fprintf(stdout, " prepare, INSERT successful\n");

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/* Get the parameter count from the statement */

param_count=3D mysql_stmt_param_count(stmt);

fprintf(stdout, " total parameters in INSERT: %d\n", param_count);

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if (param_count !=3D 3) /* validate parameter count */

{

fprintf(stderr, " invalid parameter count returned by MySQL\n");

exit(0);

}

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/* Bind the data for all 3 parameters */

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memset(bind, 0, sizeof(bind));

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/* INTEGER PARAM */

/* This is a number type, so there is no need to specify buffer_length =
*/

bind[0].buffer_type=3D MYSQL_TYPE_LONG;

bind[0].buffer=3D (char *)&int_data;

bind[0].is_null=3D 0;

bind[0].length=3D 0;

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/* STRING PARAM */

bind[1].buffer_type=3D MYSQL_TYPE_STRING;

bind[1].buffer=3D (char *)str_data;

bind[1].buffer_length=3D STRING_SIZE;

bind[1].is_null=3D 0;

bind[1].length=3D &str_length;

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/* SMALLINT PARAM */

bind[2].buffer_type=3D MYSQL_TYPE_SHORT;

bind[2].buffer=3D (char *)&small_data;

bind[2].is_null=3D &is_null;

bind[2].length=3D 0;

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/* Bind the buffers */

if (mysql_stmt_bind_param(stmt, bind))

{

/*********************************************************** **********THE=
ERROR IS HERE************************************/

fprintf(stderr, " mysql_stmt_bind_param() failed\n");

fprintf(stderr, " %s\n", mysql_stmt_error(stmt));

exit(0);

}


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Re:¿mysql_stmt_bind_param under windows bug?

am 29.08.2006 11:18:33 von Tonci Grgin

Hi.
I was unable to repeat the problem with latest 4.1.22 BK... Can you
double check your code?

C:\mysql\bin>mysqld-max-nt.exe --console --standalone
060829 10:00:06 InnoDB: Started; log sequence number 0 43634
mysqld-max-nt.exe: ready for connections.
Version: '4.1.22' socket: '' port: 3306 Source distribution

Connected!
prepare, INSERT successful
total parameters in INSERT: 3
total affected rows(insert 1): 1
total affected rows(insert 2): 1


10, 'MySQL', , '2006-08-29 10:01:21'
1000, 'The most popular Open Source database', 1000, '2006-08-29 10:01:21'

--
Tonci Grgin, Support Engineer
MySQL AB, Croatia, www.mysql.com

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