¿mysql_stmt_bind_param under windows bug?
am 22.06.2006 01:32:28 von javier.ariasgonzalez------_=_NextPart_001_01C6958A.F625C24D
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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(?,?,?)"
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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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