本文整理汇总了C++中NdbConnection::getNdbIndexOperation方法的典型用法代码示例。如果您正苦于以下问题：C++ NdbConnection::getNdbIndexOperation方法的具体用法？C++ NdbConnection::getNdbIndexOperation怎么用？C++ NdbConnection::getNdbIndexOperation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NdbConnection的用法示例。
在下文中一共展示了NdbConnection::getNdbIndexOperation方法的2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: filter
int
run_read() {
int iter = g_paramters[P_LOOPS].value;
NDB_TICKS start1, stop;
int sum_time= 0;
const Uint32 rows = g_paramters[P_ROWS].value;
const Uint32 range = g_paramters[P_RANGE].value;
start1 = NdbTick_CurrentMillisecond();
NdbConnection * pTrans = g_ndb->startTransaction();
if(!pTrans) {
g_err << "Failed to start transaction" << endl;
err(g_ndb->getNdbError());
return -1;
}
NdbOperation * pOp;
NdbScanOperation * pSp;
NdbIndexOperation * pUp;
NdbIndexScanOperation * pIp;
Uint32 start_row = rand() % (rows - range);
Uint32 stop_row = start_row + range;
/**
* 0 - serial pk
* 1 - batch pk
* 2 - serial uniq
* 3 - batch uniq
* 4 - index eq
* 5 - range scan
* 6 - interpreted scan
*/
int check = 0;
void* res = (void*)~0;
const Uint32 pk = 0;
Uint32 cnt = 0;
for(; start_row < stop_row; start_row++) {
switch(g_paramters[P_OPER].value) {
case 0:
pOp = pTrans->getNdbOperation(g_table);
check = pOp->readTuple();
check = pOp->equal(pk, start_row);
break;
case 1:
for(; start_row<stop_row; start_row++) {
pOp = pTrans->getNdbOperation(g_table);
check = pOp->readTuple();
check = pOp->equal(pk, start_row);
for(int j = 0; j<g_tab->getNoOfColumns(); j++) {
res = pOp->getValue(j);
assert(res);
}
}
break;
case 2:
pOp = pTrans->getNdbIndexOperation(g_unique, g_table);
check = pOp->readTuple();
check = pOp->equal(pk, start_row);
break;
case 3:
for(; start_row<stop_row; start_row++) {
pOp = pTrans->getNdbIndexOperation(g_unique, g_table);
check = pOp->readTuple();
check = pOp->equal(pk, start_row);
for(int j = 0; j<g_tab->getNoOfColumns(); j++) {
res = pOp->getValue(j);
assert(res);
}
}
break;
case 4:
pOp = pSp = pIp = pTrans->getNdbIndexScanOperation(g_ordered,g_table);
pIp->readTuples(NdbScanOperation::LM_CommittedRead, 0, 0);
check = pIp->setBound(pk, NdbIndexScanOperation::BoundEQ, &start_row);
break;
case 5:
pOp = pSp = pIp = pTrans->getNdbIndexScanOperation(g_ordered,g_table);
pIp->readTuples(NdbScanOperation::LM_CommittedRead, 0, 0);
check = pIp->setBound(pk, NdbIndexScanOperation::BoundLE, &start_row);
check = pIp->setBound(pk, NdbIndexScanOperation::BoundGT, &stop_row);
start_row = stop_row;
break;
case 6:
pOp = pSp = pIp = pTrans->getNdbIndexScanOperation(g_ordered,g_table);
pIp->readTuples(NdbScanOperation::LM_CommittedRead, 0, 0, true);
check = pIp->setBound(pk, NdbIndexScanOperation::BoundLE, &start_row);
check = pIp->setBound(pk, NdbIndexScanOperation::BoundGT, &stop_row);
start_row = stop_row;
break;
case 7:
pOp = pSp = pTrans->getNdbScanOperation(g_table);
pSp->readTuples(NdbScanOperation::LM_CommittedRead, 0, 0);
NdbScanFilter filter(pOp) ;
filter.begin(NdbScanFilter::AND);
filter.ge(pk, start_row);
filter.lt(pk, stop_row);
filter.end();
start_row = stop_row;
//.........这里部分代码省略.........
示例2: deleteIndex
static void deleteIndex(Ndb &myNdb, unsigned int noOfTuples, unsigned int noOfOperations, bool includePrimary, bool oneTrans, bool longKey)
{
Uint64 tbefore, tafter, before, after;
NdbConnection *myTrans;
NdbIndexOperation *myOp;
char indexName[] = "PNUMINDEX0000";
char name[] = "Kalle0000000";
tbefore = NdbTick_CurrentMillisecond();
if (oneTrans) myTrans = myNdb.startTransaction();
for (unsigned int i = 0; i<noOfTuples; i++) {
for(unsigned int j = 1;
((j<=noOfOperations)&&(i<noOfTuples));
(++j<=noOfOperations)?i++:i) {
if (!oneTrans) myTrans = myNdb.startTransaction();
if (myTrans == NULL)
error_handler4(__LINE__, myNdb.getNdbError());
myOp = myTrans->getNdbIndexOperation(indexName, "PERSON");
if (myOp == NULL)
error_handler4(__LINE__, myTrans->getNdbError());
myOp->deleteTuple();
if (includePrimary) {
sprintf(name, "Kalle%.7i", i);
if (longKey)
memcpy(longName, name, strlen(name));
if (myOp->equal("NAME", (longKey)?longName:name) == -1) {
error_handler4(__LINE__, myTrans->getNdbError());
myNdb.closeTransaction(myTrans);
break;
}
}
if (myOp->equal("PNUM1", 17) == -1) {
error_handler4(__LINE__, myTrans->getNdbError());
myNdb.closeTransaction(myTrans);
break;
}
if (myOp->equal("PNUM3", 19) == -1) {
error_handler4(__LINE__, myTrans->getNdbError());
myNdb.closeTransaction(myTrans);
break;
}
}
if (noOfOperations == 1)
printf("Trying to delete person %s\n", name);
else
printf("Trying to delete %u persons\n", noOfOperations);
before = NdbTick_CurrentMillisecond();
if (myTrans->execute( (oneTrans) ? NoCommit : Commit ) == -1)
{
error_handler4(__LINE__, myTrans->getNdbError());
myNdb.closeTransaction(myTrans);
break;
}
after = NdbTick_CurrentMillisecond();
if (noOfOperations == 1)
printf("Deleted person %s, %u msec\n", name, (Uint32) after - before);
else
printf("Deleted %u persons, %u msec\n", noOfOperations, (Uint32) after - before);
if (!oneTrans) myNdb.closeTransaction(myTrans);
}
if (oneTrans) {
if (myTrans->execute( Commit ) == -1) {
error_handler4(__LINE__, myTrans->getNdbError());
}
myNdb.closeTransaction(myTrans);
}
tafter = NdbTick_CurrentMillisecond();
ndbout << "Deleted "<< noOfTuples << " tuples in " << ((oneTrans) ? 1 : noOfTuples) << " transaction(s), " << tafter - tbefore << " msec" << endl;
}