Hi All,
Just in case someone has idea on the issue mentioned in my earlier mail ? Is it
not possible to use the same soci session for multiple prepared statements (
using soci::details::prepare_temp_type )
Thanks,
Lalit
On Friday, July 4, 2014 1:29 PM, Lalit Bhasin <lalit_...@yahoo.com> wrote:
Hi All,
I am getting error in mixing static and prepared statements ( using
soci::details::prepare_temp_type ) on same sql session (connection). I am
attaching the test code to reproduce the issue.
---
#include<soci/soci.h>
#include<exception>
#include<iostream>
int main() {
soci::session sql("mysql", "service=dbrepl user=scott password=tiger");
sql << " DROP TABLE IF EXISTS TEST_PREPSTMT ";
sql << " CREATE TABLE TEST_PREPSTMT ( ID INT ) ";
soci::details::prepare_temp_type prepStmt(sql.prepare << "INSERT INTO
TEST_PREPSTMT VALUES(:val1)");
try{
sql << " INSERT INTO TEST_PREPSTMT VALUES(1) ";
} catch(std::exception &e) {
std::cerr << " First Insert failed. Error:"<< e.what() << std::endl;
}
try {
prepStmt, soci::use(2);
soci::statement stmt(prepStmt);
stmt.execute();
} catch (std::exception &e) {
std::cerr << " Second Insert failed. Error:" << e.what() << std::endl;
}
try {
sql << " INSERT INTO TEST_PREPSTMT VALUES(3) " ;
} catch (std::exception &e) {
std::cerr << " Third Insert failed. Error:" << e.what() << std::endl;
}
}
---
On running, I get below error:
$ ./a.out
Second Insert failed. Error:You have an error in your SQL syntax; check the
manual that corresponds to your MySQL server version for the right syntax to
use near '2' at line 1
$
So, out of three inserts, second insert fails. On checking MySQL query log,
server received below statements from the test application, and 4th statement
(ie, second insert) is not correct:
---
292 Query DROP TABLE IF EXISTS TEST_PREPSTMT
292 Query CREATE TABLE TEST_PREPSTMT ( ID INT )
292 Query INSERT INTO TEST_PREPSTMT VALUES(1)
292 Query INSERT INTO TEST_PREPSTMT VALUES(1) 2
292 Query INSERT INTO TEST_PREPSTMT VALUES(3)
----
Please let me know if I am not using it correctly.
Thanks,
Lalit------------------------------------------------------------------------------
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