This is strange... I'm displaying results in an HTML table but I'm getting a different number of results being displayed depending on if/how I am debugging. If I debug slowly and hit each line then all of the results show. If I just run it or don't step through each line then I only get one result in the table. Either way the result set does have the correct number of rows, they just aren't being displayed in the table correctly.
Does anyone have any ideas why this strange behavior is happening? I'm using Eclipse Indigo. Below is the block of code that I'm using to select the records and display them.
try {
String query =
"Select * from plants where name = '"
+ name + "'";
String plantName = "";
ResultSet rs = sttmnt.executeQuery(query);
while (rs.next()) { // display information for each plant.
plantName = rs.getString(2); // display fields in cells
out.println("<tr><td>");
out.println(plantName + "</td><td>");
out.println(rs.getString(3) + "</td><td>");
out.println("$" + rs.getString(5) + "</td><td>");
out.println(rs.getString(4) + "</td>");
out.println("<input type=\"hidden\" name=\"plantName" +
plantNo + "\" value=\"" + plantName + "\">");
out.println("<input type=\"hidden\" name=\"plantID" +
plantNo + "\" value=\"" + rs.getString(1) + "\">");
out.println("</tr>");
plantNo++;
}
if (plantNo == 0) out.println("<tr><td align=\"center\" " +
" colspan=\"4\">Sorry, there are currently no " + name
+ " plants for sale.</td></tr>");
else
out.println("<tr><td align=\"center\" " +
" colspan=\"4\">Showing " + plantNo
+ " results. </td></tr>");
out.println("</table>");
rs.close();
}
Try appending all the output to a StringBuffer and print that all out in one fell swoop. You'll save on objects, too. Your code becomes:
try {
String query = "Select * from plants where name = ?";
sttmnt.setString(1, name);
String plantName = "";
ResultSet rs = sttmnt.executeQuery(query);
StringBuffer output = new StringBuffer();
while (rs.next()) { // display information for each plant.
plantName = rs.getString(2); // display fields in cells
output.append("<tr><td>");
output.append(plantName + "</td><td>");
output.append(rs.getString(3) + "</td><td>");
output.append("$" + rs.getString(5) + "</td><td>");
output.append(rs.getString(4) + "</td>");
output.append("<input type=\"hidden\" name=\"plantName" +
plantNo + "\" value=\"" + plantName + "\">");
output.append("<input type=\"hidden\" name=\"plantID" +
plantNo + "\" value=\"" + rs.getString(1) + "\">");
output.append("</tr>");
plantNo++;
}
if (plantNo == 0) output.append("<tr><td align=\"center\" " +
" colspan=\"4\">Sorry, there are currently no " + name
+ " plants for sale.</td></tr>");
else
output.append("<tr><td align=\"center\" " +
" colspan=\"4\">Showing " + plantNo
+ " results. </td></tr>");
output.append("</table>");
out.println(output.toString());
rs.close();
}
Try putting an out.flush() at the end of your code. It's likely that the data is just sitting in a buffer waiting to be sent when you run the code normally.
Related
I wrote a piece of JDBC template code, which inserts the record in the table, but the problem is my execution is stuck on this particular snippet, it seems some kind of hang up. I didn't figure out the cause as query properly running in sqldeveloper
List<SalaryDetailReport> reports = salaryDetailReportDAO.findAll(tableSuffix, regionId, circleId);
// the above line find the required data, if data is found then it proceeds
if (reports != null && reports.size() > 0) {
for (SalaryDetailReport salaryDetail : reports) {
try {
SalaryDetail sd = new SalaryDetail();
sd.setDetailReport(salaryDetail);
salaryDetailDAO.save(sd, tableSuffix);
} catch (Exception e) {
log.error("Error occured", e);
e.printStackTrace();
throw new MyExceptionHandler(" Error :" + e.getMessage());
}
}
System.out.println("data found");
} else {
log.error("Salary Record Not Found.");
throw new MyExceptionHandler("No record Found.");
}
You people saw try-catch , my execution stuck inside try and catch and here is the insertion code in my implementation class. when i commented the above code then my application works fine, but why my application stuck here, I am not able to figure it out, kindly help me
#Override
public void save(SalaryDetail details, String tableSuffix) {
String tabName = "SALARY_DETAIL_" + tableSuffix;
// String q = "INSERT INTO " + tabName + "(ID "
String q = "INSERT INTO SALARY_DETAIL_TBL "
+ " (ID "
+ " ,EMP_NAME "
+ " ,EMP_CODE "
+ " ,NET_SALARY "
+ " ,YYYYMM "
+ " ,PAY_CODE "
+ " ,EMP_ID "
+ " ,PAY_CODE_DESC "
+ " ,REMARK "
+ " ,PAY_MODE ) "
+ " (SELECT (sd.SALARY_REPORT_ID) ID "
+ " ,(sd.emp_name) emp_name "
+ " ,(sd.EMP_CODE) EMP_CODE "
+ " ,(sd.amount) NET_SALARY "
+ " ,(sd.YYYYMM) YYYYMM "
+ " ,(sd.pay_code) pay_code "
+ " ,(sd.emp_id) emp_id "
+ " ,(sd.PAY_CODE_DESC) PAY_CODE_DESC "
+ " ,(sd.REMARK) REMARK "
+ " ,(sd.PAY_MODE)PAY_MODE "
// + " FROM SALARY_DETAIL_REPORT_" + tableSuffix + " sd "
+ " FROM SALARY_DETAIL_REPORT_TBL sd "
+ " WHERE sd.PAY_CODE = 999 "
+ " AND sd.EMP_ID IS NOT NULL "
// + " AND sd.EMP_ID NOT IN (SELECT EMP_ID FROM SALARY_DETAIL_" + tableSuffix + ") "
+ " AND sd.EMP_ID NOT IN (SELECT EMP_ID FROM SALARY_DETAIL_TBL) "
+ " ) ";
MapSqlParameterSource param = new MapSqlParameterSource();
param.addValue("id", details.getId());
param.addValue("EMP_NAME", details.getEmpName());
param.addValue("EMP_CODE", details.getEmpCode());
param.addValue("NET_SALARY", details.getNetSalary());
param.addValue("GROSS_EARNING", details.getGrossEarning());
param.addValue("GROSS_DEDUCTION", details.getGrossDeduction());
param.addValue("YYYYMM", details.getYyyymm());
param.addValue("EMP_ID", details.getEmployee() != null ? details.getEmployee().getEmpId() : null);
KeyHolder keyHolder = new GeneratedKeyHolder();
getNamedParameterJdbcTemplate().update(q, param);
// details.setId(((BigDecimal) keyHolder.getKeys().get("ID")).longValue());
}
The main problem is in your query is Not In condition. It will degrade your performance. Try to fetch the "SELECT EMP_ID FROM SALARY_DETAIL_TB" in a separate query and pass in the Not in block in the main query. This will increase the performance of your query. Every time a save is performed this will fire the select query every time.
You have to decide whether you will insert records from SELECT or from the application.
If you don't need to manipulate with data after their select then you can simply call one INSERT INTO SELECT statement without any for cycle. It will be fast because of the only one INSERT statement call.
So you will implement method like copyAllInSalaryDetail(tableSuffix, regionId, circleId) in your SalaryDetailReportDAO and that method will execute INSERT INTO salary_detail_tbl... (...) (SELECT ... WHERE ...) using the same WHERE condition as you have in findAll() method. All inserts will be done only on the Database layer.
If you want to manipulate with data before their insert you can continue with your approach using SalaryDetail bean and for cycle, but you should remove the SELECT part from the INSERT statement and use values from the provided bean. Then the save() method can look like:
#Override
public void save(SalaryDetail details, String tableSuffix) {
// use tableSuffix if it is really needed
String q = "INSERT INTO SALARY_DETAIL_TBL "
+ " (ID "
+ " ,EMP_NAME "
+ " ,EMP_CODE "
+ " ,NET_SALARY "
+ " ,YYYYMM "
+ " ,PAY_CODE "
+ " ,EMP_ID "
+ " ,PAY_CODE_DESC "
+ " ,REMARK "
+ " ,PAY_MODE ) "
+ " VALUES (:id "
+ " ,:emp_name "
+ " ,:emp_code "
+ " ,:net_salary "
+ " ,:yyyymm "
+ " ,:pay_code "
+ " ,:emp_id "
+ " ,:pay_code_desc "
+ " ,:remark "
+ " ,:pay_mode)";
MapSqlParameterSource param = new MapSqlParameterSource();
// KeyHolder keyHolder = new GeneratedKeyHolder();
// details.setId(((BigDecimal) keyHolder.getKeys().get("ID")).longValue());
param.addValue("id", details.getId());
param.addValue("emp_name", details.getEmpName());
param.addValue("emp_code", details.getEmpCode());
param.addValue("net_salary", details.getNetSalary());
param.addValue("pay_code", details.getPayCode());
param.addValue("pay_code_desc", details.getPayCodeDesc());
param.addValue("pay_mode", details.getPayMode());
param.addValue("remark", details.getPayRemark());
param.addValue("yyyymm", details.getYyyymm());
param.addValue("emp_id", details.getEmployee() != null ? details.getEmployee().getEmpId() : null);
getNamedParameterJdbcTemplate().update(q, param);
}
I was wondering if someone here could help me, I can't find a solution for my problem and I have tried everything.
What I am trying to do is read and parse lines in a csv file into java objects and I have succeeded in doing that but after it reads all the lines it should insert the lines into the database but it only inserts the 1st line the entire time and I don't no why. When I do a print it shows that it is reading all the lines and placing them in the objects but as soon as I do the insert it wants to insert only the 1st line.
Please see my code below:
public boolean lineReader(File file){
BufferedReader br = null;
String line= "";
String splitBy = ",";
storeList = new ArrayList<StoreFile>();
try {
br = new BufferedReader(new FileReader(file));
while((line = br.readLine())!=null){
line = line.replace('|', ',');
//split on pipe ( | )
String[] array = line.split(splitBy, 14);
//Add values from csv to store object
//Add values from csv to storeF objects
StoreFile StoreF = new StoreFile();
if (array[0].equals("H") || array[0].equals("T")) {
return false;
} else {
StoreF.setRetailID(array[1].replaceAll("/", ""));
StoreF.setChain(array[2].replaceAll("/",""));
StoreF.setStoreID(array[3].replaceAll("/", ""));
StoreF.setStoreName(array[4].replaceAll("/", ""));
StoreF.setAddress1(array[5].replaceAll("/", ""));
StoreF.setAddress2(array[6].replaceAll("/", ""));
StoreF.setAddress3(array[7].replaceAll("/", ""));
StoreF.setProvince(array[8].replaceAll("/", ""));
StoreF.setAddress4(array[9].replaceAll("/", ""));
StoreF.setCountry(array[10].replaceAll("/", ""));
StoreF.setCurrency(array[11].replaceAll("/", ""));
StoreF.setAddress5(array[12].replaceAll("/", ""));
StoreF.setTelNo(array[13].replaceAll("/", ""));
//Add stores to list
storeList.add(StoreF);
}
} //print list stores in file
printStoreList(storeList);
executeStoredPro(storeList);
} catch (Exception ex) {
nmtbatchservice.NMTBatchService2.LOG.error("An exception accoured: " + ex.getMessage(), ex);
//copy to error folder
//email
}
return false;
}
public void printStoreList(List<StoreFile> storeListToPrint) {
for(int i = 0; i <storeListToPrint.size();i++){
System.out.println( storeListToPrint.get(i).getRetailID()
+ storeListToPrint.get(i).getChain()
+ storeListToPrint.get(i).getStoreID()
+ storeListToPrint.get(i).getStoreName()
+ storeListToPrint.get(i).getAddress1()
+ storeListToPrint.get(i).getAddress2()
+ storeListToPrint.get(i).getAddress3()
+ storeListToPrint.get(i).getProvince()
+ storeListToPrint.get(i).getAddress4()
+ storeListToPrint.get(i).getCountry()
+ storeListToPrint.get(i).getCurrency()
+ storeListToPrint.get(i).getAddress5()
+ storeListToPrint.get(i).getTelNo());
}
}
public void unzip(String source, String destination) {
try {
ZipFile zipFile = new ZipFile(source);
zipFile.extractAll(destination);
deleteStoreFile(source);
} catch (ZipException ex) {
nmtbatchservice.NMTBatchService2.LOG.error("Error unzipping file : " + ex.getMessage(), ex);
}
}
public void deleteStoreFile(String directory) {
try {
File file = new File(directory);
file.delete();
} catch (Exception ex) {
nmtbatchservice.NMTBatchService2.LOG.error("An exception accoured when trying to delete file " + directory + " : " + ex.getMessage(), ex);
}
}
public void executeStoredPro(List<StoreFile> storeListToInsert) {
Connection con = null;
CallableStatement st = null;
try {
String connectionURL = MSSQLConnectionURL;
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver").newInstance();
con = DriverManager.getConnection(connectionURL, MSSQLUsername, MSSQLPassword);
for(int i = 0; i <storeListToInsert.size();i++){
st = con.prepareCall( "IF EXISTS (SELECT * FROM tblPay#RetailStores WHERE StoreID = " + storeListToInsert.get(i).getStoreID() + " AND RetailID = "+ storeListToInsert.get(i).getRetailID() + ")"
+ " UPDATE tblPay#RetailStores "
+ " SET RetailID = '" + storeListToInsert.get(i).getRetailID() + "',"
+ " StoreID = '" + storeListToInsert.get(i).getStoreID() + "',"
+ " StoreName = '" + storeListToInsert.get(i).getStoreName() + "',"
+ " TestStore = 0,"
+ " Address1 = '" + storeListToInsert.get(i).getAddress1() + "',"
+ " Address2 = '" + storeListToInsert.get(i).getAddress2() + "',"
+ " Address3 = '" + storeListToInsert.get(i).getAddress3() + "',"
+ " Address4 = '" + storeListToInsert.get(i).getAddress4() + "',"
+ " Address5 = '" + storeListToInsert.get(i).getAddress5() + "',"
+ " Province = '" + storeListToInsert.get(i).getProvince() + "',"
+ " TelNo = '" + storeListToInsert.get(i).getTelNo() + "',"
+ " Enabled = 1"
+ " ELSE "
+ " INSERT INTO tblPay#RetailStores ( [RetailID], [StoreID], [StoreName], [TestStore], [Address1], [Address2], [Address3], [Address4], [Address5], [Province], [TelNo] , [Enabled] ) "
+ " VALUES "
+ "('" + storeListToInsert.get(i).getRetailID() + "',"
+ "'" + storeListToInsert.get(i).getStoreID() + "',"
+ "'" + storeListToInsert.get(i).getStoreName() + "',"
+ "0,"
+ "'" + storeListToInsert.get(i).getAddress1() + "',"
+ "'" + storeListToInsert.get(i).getAddress2() + "',"
+ "'" + storeListToInsert.get(i).getAddress3() + "',"
+ "'" + storeListToInsert.get(i).getAddress4() + "',"
+ "'" + storeListToInsert.get(i).getAddress5() + "',"
+ "'" + storeListToInsert.get(i).getProvince() + "',"
+ "'" + storeListToInsert.get(i).getTelNo() + "',"
+ "1)");
st.executeUpdate();
}
con.close();
} catch (Exception ex) {
nmtbatchservice.NMTBatchService2.LOG.error("Error executing Stored proc with error : " + ex.getMessage(), ex);
nmtbatchservice.NMTBatchService2.mailingQueue.addToQueue(new Mail("support#nmt-it.co.za", "Service Email Error", "An error occurred during Store Import failed with error : " + ex.getMessage()));
}
}
Any advise would be appreciated.
Thanks
Formatting aside, your code is wrong (I truncated the part of the query):
for(int i = 0; i <storeListToInsert.size();i++){
st = con.prepareCall( "IF EXISTS (SELECT * FROM tblPay#RetailStores ...
+ "'" + storeListToInsert.get(i).getTelNo() + "',"
+ "1)");
st.executeUpdate();
}
Don't do a classical for loop while foreach exists and can be better to use, and even if you do a classical for loop, use local variables, eg:
for(int i = 0; i <storeListToInsert.size();i++){
StoreFile item = storeListToInsert.get(i);
st = con.prepareCall( "IF EXISTS (SELECT * FROM tblPay#RetailStores ...
+ "'" + item.getTelNo() + "',"
+ "1)");
st.executeUpdate();
}
Which could translate as:
for (StoreFile item : storeListToInsert) {
st = con.prepareCall( "IF EXISTS (SELECT * FROM tblPay#RetailStores ...
+ "'" + item.getTelNo() + "',"
+ "1)");
st.executeUpdate();
}
Now, the second problem is your PreparedStatement. A PreparedStatement allow reusing, which means you don't need to create PreparedStatement per item which is what you are doing.
Also, you need to close the statement otherwise, you will exhaust resources..
You must not create it in the for loop, but before, like this:
PreparedStatement st = null;
try {
st = con.prepareCall( "IF EXISTS (SELECT * FROM tblPay#RetailStores ...
+ "SET RetailID = :RetailID ,"
+ "1)");
for (StoreFile item : storeListToInsert) {
st.setString(":RetailID", item.getRetailID());
st.executeUpdate();
}
} finally {
if (null != st) {st.close();}
}
In brief:
You need to close the PreparedStatement after usage, because it is a memory leak otherwise.
You need to rewrite your query using either named parameters, either positional parameter (like: ? or ?1 for first parameter, and so on). I favor named parameters, but they are not always available. The example I linked all use positional parameters.
You need to set the value for each parameters in the for loop, and care about the type. I expected here that getRetailID() is a String, but it might be a Long in that case that would be st.setLong.
Your query is reusable, avoiding the need to reparse it/resend it to the SQL Server. You just send the parameter's values. Beside, you can also batch update.
A PreparedStatement for a statement that you generate (like you are doing) is overkill, and beside, it is missing SQL escapement to protect the String you inject to your query to avoid it being badly interpreted (aka SQL errors) or worst, to do what it was not intended for (like, even if it is far fetched, dropping the whole database, etc).
The executeUpdate() return the number of updated rows. You can check it to see if there was updates.
You can also use Batch statement, which can help performances.
And finally, you can use opencsv to parse common CSV files.
Lets assume, that we have some 2 tables in SQLite: TBL_PRODUCT and TBL_PRODUCT_ALIASES. Now, I want to query some data from joined two tables:
String sql = "SELECT " + TBL_PRODUCT + "." + C_PROD_PKEY_ID + ", " + TBL_PRODUCT_ALIASES + "." + C_PROD_ALIASES_PKEY_ID +
" FROM " + TBL_PRODUCT + " LEFT JOIN " + TBL_PRODUCT_ALIASES + " ON " + TBL_PRODUCT + "." + C_PROD_PKEY_ID + " = " + TBL_PRODUCT_ALIASES + "." + C_PROD_ALIASES_PKEY_ID +
" WHERE " + C_PROD_SERVER_ID + " = ? LIMIT 1";
Cursor cursor = SQLiteDataHelper.getInstance().rawQuery(sql, new String[] {"" + js_CartProduct.getLong("prod_id")});
Thats works great without any problem. And then I want to acquire some data from the returned cursor:
if (cursor.getCount() > 0) {
cursor.moveToFirst();
Long prodId = cursor.getLong(cursor.getColumnIndexOrThrow(TBL_PRODUCT + "." + C_PROD_PKEY_ID));
//... Some other code
}
Now, here is the problem: C_PROD_PKEY_ID and C_PROD_ALIASES_PKEY_ID are in the real world the same Strings: "_id". And as the result getLong() returns long not from the needed column of cursor.
How should I correctly address to the needed column? Are there other methods besides using AS in sql query OR/AND using definite numbers in cursor.getLong(0) instead of cursor.getLong(cursor.getColumnIndexOrThrow(TBL_PRODUCT + "." + C_PROD_PKEY_ID))?
Update:
cursor.getColumnNames() returns this: [_id, _id].
I am currently trying to implement a jdbc connection that returns all the data in a table when i "search" for anything that matches the input with '%input%'.
eg ResultSet rs4 = stm4.executeQuery("select imageTime from image_data where imageName like '%" + value3 + "%' or imageTime like '%" + value3 + "%' or imageLocation like '" + value3 + "'" );
i am trying to return ALL the rows in the result set as search results.
but if i have Resultset.next commanded when there is no more rows to go to it
causes the following results sets to all null,....
if anything id love a method to output the entire result set, thanks.
EDIT
editing the question: to be more direct; i need a way to get every piece of data from each row in each containing column of the result set. so i can output it.
This is my attempt of this below.
rs4 = a Resultset as declared below.
here is my code;
if(name_time_location == 1)
{
String value3=searchInput.getText();//Sets the search Input as value3
// selecting the cominbation from table, that match input options
try{
con = DriverManager.getConnection("jdbc:mysql:blah blah");
// Query the database for the correct username and passord
Statement stm3 = con.createStatement();
Statement stm4 = con.createStatement();
Statement stm5 = con.createStatement();
//queries database for password from input username
ResultSet rs3 = stm3.executeQuery("select imageName from image_data where imageName like '%" + value3 + "%' or imageTime like '%" + value3 + "%' or imageLocation like '" + value3 + "'" );
//ResultSetMetaData rsmd = rs3.getMetaData();
//stm3.setFetchSize(5);
//rs3.last();
//int numberOfRows = rs3.getRow();
//String[] resultList;
//resultList = new String[numberOfRows];
// Fetch each row from the result set
rs3.beforeFirst();
while(rs3.next())
{
imageSearchResult1 = rs3.getString(1);
rs3.next();
imageSearchResult11 = rs4.getString(1);
rs3.next();
imageSearchResult12 = rs4.getString(1);
rs3.next();
imageSearchResult13 = rs4.getString(1);
rs3.next();
imageSearchResult14 = rs4.getString(1);
}rs3.close();
}catch (Exception e)
{
//System.out.println("Exception: " + e + "");
}
System.out.println("Search Results: \nName: " + imageSearchResult1 + " Time stamp: " + imageSearchResult2 + " Location: " + imageSearchResult3 + "\n" +
"Name: " + imageSearchResult11 + " Time stamp: " + imageSearchResult21 + " Location: " + imageSearchResult31 + "\n" +
"Name: " + imageSearchResult12 + " Time stamp: " + imageSearchResult22 + " Location: " + imageSearchResult32 + "\n" +
"Name: " + imageSearchResult13 + " Time stamp: " + imageSearchResult23 + " Location: " + imageSearchResult33 + "\n" +
"Name: " + imageSearchResult14 + " Time stamp: " + imageSearchResult24 + " Location: " + imageSearchResult34 + "\n" );
I think you can achieve the same thing by modifying the query and instead of creating 3 queries, get the 3 values in the same query as:
select imageName,imageLocation,imageTime from .....
Then use this query to generate the ResultSet and get the three values as rs.getType(1),rs.getType(2),rs.getType(3).
In the same while(rs.next()) loop, you can print the data that you want to print.
I am trying to insert records into SQL Server using jdbc conn (in java).
I am able to insert into SQL, if I manually copy the query statement in the java file. But its not inserting from the code?
Please help, where am I committing mistake?
PreparedStatement preparedStatement = null;
if (conn != null) {
System.out.println("Connection Successful!");
}
//Create a Statement object
Statement sql_stmt = conn.createStatement();
//Create a Statement object
Statement sql_stmt_1 = conn.createStatement();
//Result Set for Prouduct Table
ResultSet rs = sql_stmt.executeQuery("SELECT MAX(ID), MAX(RG_ID), MAX(WG_ID) FROM " + strDBName + ".[dbo].Product");
if ( rs.next() ) {
// Retrieve the auto generated key(s).
intID = rs.getInt(1);
intRG_ID = rs.getInt(2);
intWG_ID = rs.getInt(3);
}
for (int iCount = 0 ;iCount < arrListLevel_1_Unique.size(); iCount++)
{
//Result Set for Prouduct Table
sql_stmt_1.executeUpdate("\n IF NOT EXISTS(SELECT 1 FROM " + strDBName + ".[dbo].Product WHERE [Name] NOT LIKE '" + arrListLevel_1_Unique.get(iCount) + "') "
+ "\nINSERT INTO " + strDBName + ".[dbo].Product ([Name] ,"
+ "[RG_ID],[WG_ID],[Parent_Product]) "
+ "VALUES ( '" + arrListLevel_1_Unique.get(iCount) + "',"
+ + (intWG_ID + intRowIncrement) + ", " + (intWG_ID + intRowIncrement + 1) + ", 5828)");
intRowIncrement++ ;
}
rs.close();
sql_stmt.close();
sql_stmt_1.close();
//Close the database connection
conn.close();
You have two plus signs + in the fifth row:
+ + (intWG_ID + intRowIncrement) + ...
Otherwise, the problem may lie in the IF ... statement. You can try this instead:
sql_stmt_1.executeUpdate(
" INSERT INTO " + strDBName + ".[dbo].Product ([Name] ,"
+ "[RG_ID],[WG_ID],[Parent_Product]) "
+ " SELECT '" + arrListLevel_1_Unique.get(iCount) + "',"
+ (intWG_ID + intRowIncrement) + ", "
+ (intWG_ID + intRowIncrement + 1) + ", 5828 "
+ " WHERE NOT EXISTS( SELECT 1 FROM " + strDBName
+ ".[dbo].Product WHERE [Name] LIKE '"
+ arrListLevel_1_Unique.get(iCount) + "') "
) ;
I think the problem lies on the "\n", have you tried eliminating those 2 of "\n" and see if it's working?
Actually this kind of implementation (building SQL string with string concatenation) is really bad. At first is prone to SQL injection, and then secondly you will have problem if the value to be inserted contains character single quote or ampersand.
Instead, you should use "prepare statement".
And it's tidier to store the SQL string into a variable before executing it. So that you can log it (for debug purpose), roughly something like this:
String sqlCommand = "select * from " + tableName;
System.out.println(sqlCommand);
sqlStatement.executeUpdate(sqlCommand);
P.S. it is not advised to use system.out.println for debug, you should implement a proper logging system.