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Fix error when inserting to tables with datetime fields with QODBC

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SQL Server 10 introduced stricter rules for TIMESTAMP validation,
making it necessary to specify the decimal digits.
Other databases might do the same as well, so this patch introduces
a check for the TIMESTAMP column size and adjusts the decimal digits
parameter as needed.

Task-number: QTBUG-2192

Change-Id: If6d798c6c928ebda75bc474e49a07fbbfbe5816c
Reviewed-by: Mark Brand <mabrand@mabrand.nl>
This commit is contained in:
Thiago A. Correa 2012-07-13 14:28:18 -03:00 committed by Qt by Nokia
parent 5762da38b9
commit b8b79a0f37
2 changed files with 69 additions and 5 deletions
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44
src/sql/drivers/odbc/qsql_odbc.cpp
View File

@ -54,6 +54,7 @@
#include <qstringlist.h>
#include <qvarlengtharray.h>
#include <qvector.h>
#include <qmath.h>
#include <QDebug>
#include <QSqlQuery>
@ -115,7 +116,7 @@ class QODBCDriverPrivate
public:
enum DefaultCase{Lower, Mixed, Upper, Sensitive};
QODBCDriverPrivate()
: hEnv(0), hDbc(0), unicode(false), useSchema(false), disconnectCount(0), isMySqlServer(false),
: hEnv(0), hDbc(0), unicode(false), useSchema(false), disconnectCount(0), datetime_precision(19), isMySqlServer(false),
isMSSqlServer(false), isFreeTDSDriver(false), hasSQLFetchScroll(true),
hasMultiResultSets(false), isQuoteInitialized(false), quote(QLatin1Char('"'))
{
@ -127,6 +128,7 @@ public:
bool unicode;
bool useSchema;
int disconnectCount;
int datetime_precision;
bool isMySqlServer;
bool isMSSqlServer;
bool isFreeTDSDriver;
@ -139,6 +141,7 @@ public:
void checkHasSQLFetchScroll();
void checkHasMultiResults();
void checkSchemaUsage();
void checkDateTimePrecision();
bool setConnectionOptions(const QString& connOpts);
void splitTableQualifier(const QString &qualifier, QString &catalog,
QString &schema, QString &table);
@ -1395,14 +1398,25 @@ bool QODBCResult::exec()
dt->hour = qdt.time().hour();
dt->minute = qdt.time().minute();
dt->second = qdt.time().second();
int precision = d->driverPrivate->datetime_precision - 20; // (20 includes a separating period)
if (precision <= 0) {
dt->fraction = 0;
} else {
dt->fraction = qdt.time().msec() * 1000000;
// (How many leading digits do we want to keep? With SQL Server 2005, this should be 3: 123000000)
int keep = (int)qPow(10.0, 9 - qMin(9, precision));
dt->fraction /= keep * keep;
}
r = SQLBindParameter(d->hStmt,
i + 1,
qParamType[(QFlag)(bindValueType(i)) & QSql::InOut],
SQL_C_TIMESTAMP,
SQL_TIMESTAMP,
19,
0,
d->driverPrivate->datetime_precision,
precision,
(void *) dt,
0,
*ind == SQL_NULL_DATA ? ind : NULL);
@ -1887,6 +1901,7 @@ bool QODBCDriver::open(const QString & db,
d->checkSqlServer();
d->checkHasSQLFetchScroll();
d->checkHasMultiResults();
d->checkDateTimePrecision();
setOpen(true);
setOpenError(false);
if(d->isMSSqlServer) {
@ -2122,6 +2137,29 @@ void QODBCDriverPrivate::checkHasMultiResults()
#endif
}
void QODBCDriverPrivate::checkDateTimePrecision()
{
SQLINTEGER columnSize;
SQLHANDLE hStmt;
SQLRETURN r = SQLAllocHandle(SQL_HANDLE_STMT, hDbc, &hStmt);
if (r != SQL_SUCCESS) {
return;
}
r = SQLGetTypeInfo(hStmt, SQL_TIMESTAMP);
if (r == SQL_SUCCESS || r == SQL_SUCCESS_WITH_INFO) {
r = SQLFetch(hStmt);
if ( r == SQL_SUCCESS || r == SQL_SUCCESS_WITH_INFO )
{
if (SQLGetData(hStmt, 3, SQL_INTEGER, &columnSize, sizeof(columnSize), 0) == SQL_SUCCESS) {
datetime_precision = (int)columnSize;
}
}
}
SQLFreeHandle(SQL_HANDLE_STMT, hStmt);
}
QSqlResult *QODBCDriver::createResult() const
{
return new QODBCResult(this, d);

28
tests/auto/sql/kernel/qsqlquery/tst_qsqlquery.cpp
View File

@ -219,6 +219,8 @@ private slots:
void QTBUG_16967(); //clean close
void QTBUG_23895_data() { generic_data("QSQLITE"); }
void QTBUG_23895(); //sqlite boolean type
void QTBUG_2192_data() { generic_data(); }
void QTBUG_2192();
void sqlite_constraint_data() { generic_data("QSQLITE"); }
void sqlite_constraint();
@ -341,7 +343,8 @@ void tst_QSqlQuery::dropTestTables( QSqlDatabase db )
<< qTableName( "task_250026", __FILE__ )
<< qTableName( "task_234422", __FILE__ )
<< qTableName("test141895", __FILE__)
<< qTableName("qtest_oraOCINumber", __FILE__);
<< qTableName("qtest_oraOCINumber", __FILE__)
<< qTableName( "bug2192", __FILE__);
if ( db.driverName().startsWith("QPSQL") )
tablenames << qTableName("task_233829", __FILE__);
@ -3357,6 +3360,29 @@ void tst_QSqlQuery::QTBUG_23895()
QVERIFY(!q.next());
}
void tst_QSqlQuery::QTBUG_2192()
{
QFETCH( QString, dbName );
QSqlDatabase db = QSqlDatabase::database( dbName );
CHECK_DATABASE( db );
{
const QString tableName(qTableName("bug2192", __FILE__));
tst_Databases::safeDropTable( db, tableName );
QSqlQuery q(db);
QVERIFY_SQL(q, exec("CREATE TABLE " + tableName + " (dt DATETIME)"));
QVERIFY_SQL(q, prepare("INSERT INTO " + tableName + " (dt) VALUES (?)"));
q.bindValue(0, QVariant(QDateTime(QDate(2012, 7, 4), QTime(23, 59, 59, 999))));
QVERIFY_SQL(q, exec());
// Check if value was stored with at least second precision.
QVERIFY_SQL(q, exec("SELECT dt FROM " + tableName));
QVERIFY_SQL(q, next());
QVERIFY(q.value(0).toDateTime().msecsTo(QDateTime(QDate(2012, 7, 4), QTime(23, 59, 59, 999))) < 1000 );
}
}
void tst_QSqlQuery::oraOCINumber()
{
QFETCH( QString, dbName );