本文整理汇总了C++中NdbScanOperation::equal方法的典型用法代码示例。如果您正苦于以下问题：C++ NdbScanOperation::equal方法的具体用法？C++ NdbScanOperation::equal怎么用？C++ NdbScanOperation::equal使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类NdbScanOperation的用法示例。
在下文中一共展示了NdbScanOperation::equal方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: while
inline
int
ScanFunctions::scanReadFunctions(Ndb* pNdb,
int records,
int parallelism,
ActionType action,
bool exclusive){
int retryAttempt = 0;
const int retryMax = 100;
int sleepTime = 10;
int check;
NdbConnection *pTrans = 0;
NdbScanOperation *pOp = 0;
while (true){
if (retryAttempt >= retryMax){
g_err << "ERROR: has retried this operation " << retryAttempt
<< " times, failing!" << endl;
return NDBT_FAILED;
}
pTrans = pNdb->startTransaction();
if (pTrans == NULL) {
const NdbError err = pNdb->getNdbError();
if (err.status == NdbError::TemporaryError){
ERR(err);
NdbSleep_MilliSleep(50);
retryAttempt++;
continue;
}
ERR(err);
return NDBT_FAILED;
}
// Execute the scan without defining a scan operation
pOp = pTrans->getNdbScanOperation(tab.getName());
if (pOp == NULL) {
ERR(pTrans->getNdbError());
pNdb->closeTransaction(pTrans);
return NDBT_FAILED;
}
if( pOp->readTuples(exclusive ?
NdbScanOperation::LM_Exclusive :
NdbScanOperation::LM_Read) ) {
ERR(pTrans->getNdbError());
pNdb->closeTransaction(pTrans);
return NDBT_FAILED;
}
if (action == OnlyOpenScanOnce){
// Call openScan one more time when it's already defined
if( pOp->readTuples(NdbScanOperation::LM_Read) ) {
ERR(pTrans->getNdbError());
pNdb->closeTransaction(pTrans);
return NDBT_FAILED;
}
}
if (action==EqualAfterOpenScan){
check = pOp->equal(tab.getColumn(0)->getName(), 10);
if( check == -1 ) {
ERR(pTrans->getNdbError());
pNdb->closeTransaction(pTrans);
return NDBT_FAILED;
}
}
check = pOp->interpret_exit_ok();
if( check == -1 ) {
ERR(pTrans->getNdbError());
pNdb->closeTransaction(pTrans);
return NDBT_FAILED;
}
for(int a = 0; a<tab.getNoOfColumns(); a++){
if(pOp->getValue(tab.getColumn(a)->getName()) == NULL) {
ERR(pTrans->getNdbError());
pNdb->closeTransaction(pTrans);
return NDBT_FAILED;
}
}
check = pTrans->execute(NoCommit);
if( check == -1 ) {
ERR(pTrans->getNdbError());
pNdb->closeTransaction(pTrans);
return NDBT_FAILED;
}
int abortCount = records / 10;
bool abortTrans = (action==CloseWithoutStop);
int eof;
int rows = 0;
eof = pOp->nextResult();
while(eof == 0){
rows++;
//.........这里部分代码省略.........