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Initial revision of NDB Cluster files
BitKeeper/etc/logging_ok: Logging to logging@openlogging.org accepted
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33
ndb/examples/ndbapi_example1/Makefile
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33
ndb/examples/ndbapi_example1/Makefile
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-include .defs.mk
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#NDB_OS = OS_YOU_ARE_RUNNING_ON
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#You need to set the NDB_OS variable here
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TARGET = ndbapi_example1
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SRCS = ndbapi_example1.cpp
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OBJS = ndbapi_example1.o
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CXX = g++
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CFLAGS = -c -Wall -fno-rtti -fno-exceptions
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DEBUG =
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LFLAGS = -Wall
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INCLUDE_DIR = ../../include
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LIB_DIR = ../../lib
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ifeq ($(NDB_OS), SOLARIS)
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# Here is the definition of system libraries necessary for Solaris 7
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SYS_LIB =
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endif
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ifeq ($(NDB_OS), LINUX)
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# Here is the definition of system libraries necessary for Linux 2.4
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SYS_LIB =
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endif
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ifeq ($(NDB_OS), MACOSX)
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# Here is the definition of system libraries necessary for Mac OS X
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SYS_LIB =
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endif
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$(TARGET): $(OBJS)
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$(CXX) $(LFLAGS) -L$(LIB_DIR) $(OBJS) -lNDB_API $(SYS_LIB) -o $(TARGET)
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$(TARGET).o: $(SRCS)
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$(CXX) $(CFLAGS) -I$(INCLUDE_DIR) -I$(INCLUDE_DIR)/ndbapi $(SRCS)
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clean:
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rm -f *.o $(TARGET)
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193
ndb/examples/ndbapi_example1/ndbapi_example1.cpp
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ndb/examples/ndbapi_example1/ndbapi_example1.cpp
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/* Copyright (C) 2003 MySQL AB
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
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//
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// ndbapi_example1.cpp: Using synchronous transactions in NDB API
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//
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// Correct output from this program is:
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//
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// ATTR1 ATTR2
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// 0 10
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// 1 1
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// 2 12
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// Detected that deleted tuple doesn't exist!
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// 4 14
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// 5 5
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// 6 16
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// 7 7
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// 8 18
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// 9 9
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#include <NdbApi.hpp>
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// Used for cout
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#include <stdio.h>
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#include <iostream>
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#define APIERROR(error) \
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{ std::cout << "Error in " << __FILE__ << ", line:" << __LINE__ << ", code:" \
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<< error.code << ", msg: " << error.message << "." << std::endl; \
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exit(-1); }
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int main()
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{
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Ndb* myNdb = new Ndb( "TEST_DB_1" ); // Object representing the database
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NdbDictionary::Table myTable;
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NdbDictionary::Column myColumn;
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NdbConnection *myConnection; // For other transactions
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NdbOperation *myOperation; // For other operations
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NdbRecAttr *myRecAttr; // Result of reading attribute value
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/********************************************
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* Initialize NDB and wait until it's ready *
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********************************************/
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if (myNdb->init() == -1) {
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APIERROR(myNdb->getNdbError());
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exit(-1);
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}
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if (myNdb->waitUntilReady(30) != 0) {
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std::cout << "NDB was not ready within 30 secs." << std::endl;
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exit(-1);
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}
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NdbDictionary::Dictionary* myDict = myNdb->getDictionary();
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/*********************************************************
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* Create a table named MYTABLENAME if it does not exist *
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*********************************************************/
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if (myDict->getTable("MYTABLENAME") != NULL) {
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std::cout << "NDB already has example table: MYTABLENAME." << std::endl;
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exit(-1);
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}
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myTable.setName("MYTABLENAME");
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myColumn.setName("ATTR1");
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myColumn.setPrimaryKey(true);
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myColumn.setType(NdbDictionary::Column::Unsigned);
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myColumn.setLength(1);
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myColumn.setNullable(false);
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myTable.addColumn(myColumn);
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myColumn.setName("ATTR2");
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myColumn.setPrimaryKey(false);
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myColumn.setType(NdbDictionary::Column::Unsigned);
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myColumn.setLength(1);
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myColumn.setNullable(false);
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myTable.addColumn(myColumn);
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if (myDict->createTable(myTable) == -1)
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APIERROR(myDict->getNdbError());
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/**************************************************************************
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* Using 5 transactions, insert 10 tuples in table: (0,0),(1,1),...,(9,9) *
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**************************************************************************/
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for (int i = 0; i < 5; i++) {
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myConnection = myNdb->startTransaction();
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if (myConnection == NULL) APIERROR(myNdb->getNdbError());
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myOperation = myConnection->getNdbOperation("MYTABLENAME");
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if (myOperation == NULL) APIERROR(myConnection->getNdbError());
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myOperation->insertTuple();
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myOperation->equal("ATTR1", i);
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myOperation->setValue("ATTR2", i);
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myOperation = myConnection->getNdbOperation("MYTABLENAME");
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if (myOperation == NULL) APIERROR(myConnection->getNdbError());
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myOperation->insertTuple();
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myOperation->equal("ATTR1", i+5);
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myOperation->setValue("ATTR2", i+5);
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if (myConnection->execute( Commit ) == -1)
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APIERROR(myConnection->getNdbError());
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myNdb->closeTransaction(myConnection);
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}
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/*****************************************************************
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* Update the second attribute in half of the tuples (adding 10) *
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*****************************************************************/
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for (int i = 0; i < 10; i+=2) {
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myConnection = myNdb->startTransaction();
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if (myConnection == NULL) APIERROR(myNdb->getNdbError());
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myOperation = myConnection->getNdbOperation("MYTABLENAME");
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if (myOperation == NULL) APIERROR(myConnection->getNdbError());
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myOperation->updateTuple();
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myOperation->equal( "ATTR1", i );
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myOperation->setValue( "ATTR2", i+10);
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if( myConnection->execute( Commit ) == -1 )
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APIERROR(myConnection->getNdbError());
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myNdb->closeTransaction(myConnection);
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}
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/*************************************************
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* Delete one tuple (the one with primary key 3) *
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*************************************************/
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myConnection = myNdb->startTransaction();
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if (myConnection == NULL) APIERROR(myNdb->getNdbError());
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myOperation = myConnection->getNdbOperation("MYTABLENAME");
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if (myOperation == NULL)
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APIERROR(myConnection->getNdbError());
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myOperation->deleteTuple();
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myOperation->equal( "ATTR1", 3 );
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if (myConnection->execute(Commit) == -1)
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APIERROR(myConnection->getNdbError());
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myNdb->closeTransaction(myConnection);
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/*****************************
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* Read and print all tuples *
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*****************************/
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std::cout << "ATTR1 ATTR2" << std::endl;
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for (int i = 0; i < 10; i++) {
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myConnection = myNdb->startTransaction();
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if (myConnection == NULL) APIERROR(myNdb->getNdbError());
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myOperation = myConnection->getNdbOperation("MYTABLENAME");
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if (myOperation == NULL) APIERROR(myConnection->getNdbError());
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myOperation->readTuple();
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myOperation->equal("ATTR1", i);
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myRecAttr = myOperation->getValue("ATTR2", NULL);
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if (myRecAttr == NULL) APIERROR(myConnection->getNdbError());
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if(myConnection->execute( Commit ) == -1)
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if (i == 3) {
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std::cout << "Detected that deleted tuple doesn't exist!" << std::endl;
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} else {
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APIERROR(myConnection->getNdbError());
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}
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if (i != 3) {
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printf(" %2d %2d\n", i, myRecAttr->u_32_value());
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}
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myNdb->closeTransaction(myConnection);
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}
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delete myNdb;
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}
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