How to return a string value from sqlite query?
Here is my query. I want to get the string value and return the single value to the activity class from where I have called the getSelectedMerchantCode
function. My code is not working. Its returning "error"
public String getSelectedMerchantCode(String merchantname){
String selection = "Error";
SQLiteDatabase db = this.getReadableDatabase();
Cursor c = db.rawQuery("SELECT merchantCode FROM " + "merchantList"+ " WHERE " + "merchantName" + "='" + merchantname + "'", null);
if(c.getCount() == 1){
c.moveToFirst();
selection = c.getString(c.getColumnIndex("merchantCode"));
return selection;
}
c.close();
db.close();
return null;
}

|
show 7 more comments
Here is my query. I want to get the string value and return the single value to the activity class from where I have called the getSelectedMerchantCode
function. My code is not working. Its returning "error"
public String getSelectedMerchantCode(String merchantname){
String selection = "Error";
SQLiteDatabase db = this.getReadableDatabase();
Cursor c = db.rawQuery("SELECT merchantCode FROM " + "merchantList"+ " WHERE " + "merchantName" + "='" + merchantname + "'", null);
if(c.getCount() == 1){
c.moveToFirst();
selection = c.getString(c.getColumnIndex("merchantCode"));
return selection;
}
c.close();
db.close();
return null;
}

3
what is the error ? post error log
– Ganesh Gudghe
Nov 21 '18 at 8:59
Because i actually don't want the row ID. i want a specific code which is in the table according to the merchantName. @pskink
– nawshin.ahmed
Nov 21 '18 at 9:00
@GaneshGudghe there is no error. its returning the string "error" which i have declared in the code.
– nawshin.ahmed
Nov 21 '18 at 9:01
Yes. I have tried onItemClickListener. Its getting the selected name. Now i want the specific code of that selected name for which i don't knw what to do. I am now basically want to run a query, get the code, then insert it to a new table.
– nawshin.ahmed
Nov 21 '18 at 9:04
@VladyslavMatviienko "error" is just a string which i have declared in the fucntion.
– nawshin.ahmed
Nov 21 '18 at 9:06
|
show 7 more comments
Here is my query. I want to get the string value and return the single value to the activity class from where I have called the getSelectedMerchantCode
function. My code is not working. Its returning "error"
public String getSelectedMerchantCode(String merchantname){
String selection = "Error";
SQLiteDatabase db = this.getReadableDatabase();
Cursor c = db.rawQuery("SELECT merchantCode FROM " + "merchantList"+ " WHERE " + "merchantName" + "='" + merchantname + "'", null);
if(c.getCount() == 1){
c.moveToFirst();
selection = c.getString(c.getColumnIndex("merchantCode"));
return selection;
}
c.close();
db.close();
return null;
}

Here is my query. I want to get the string value and return the single value to the activity class from where I have called the getSelectedMerchantCode
function. My code is not working. Its returning "error"
public String getSelectedMerchantCode(String merchantname){
String selection = "Error";
SQLiteDatabase db = this.getReadableDatabase();
Cursor c = db.rawQuery("SELECT merchantCode FROM " + "merchantList"+ " WHERE " + "merchantName" + "='" + merchantname + "'", null);
if(c.getCount() == 1){
c.moveToFirst();
selection = c.getString(c.getColumnIndex("merchantCode"));
return selection;
}
c.close();
db.close();
return null;
}


edited Nov 21 '18 at 8:58


Jaymin
1,6792927
1,6792927
asked Nov 21 '18 at 8:55
nawshin.ahmednawshin.ahmed
107
107
3
what is the error ? post error log
– Ganesh Gudghe
Nov 21 '18 at 8:59
Because i actually don't want the row ID. i want a specific code which is in the table according to the merchantName. @pskink
– nawshin.ahmed
Nov 21 '18 at 9:00
@GaneshGudghe there is no error. its returning the string "error" which i have declared in the code.
– nawshin.ahmed
Nov 21 '18 at 9:01
Yes. I have tried onItemClickListener. Its getting the selected name. Now i want the specific code of that selected name for which i don't knw what to do. I am now basically want to run a query, get the code, then insert it to a new table.
– nawshin.ahmed
Nov 21 '18 at 9:04
@VladyslavMatviienko "error" is just a string which i have declared in the fucntion.
– nawshin.ahmed
Nov 21 '18 at 9:06
|
show 7 more comments
3
what is the error ? post error log
– Ganesh Gudghe
Nov 21 '18 at 8:59
Because i actually don't want the row ID. i want a specific code which is in the table according to the merchantName. @pskink
– nawshin.ahmed
Nov 21 '18 at 9:00
@GaneshGudghe there is no error. its returning the string "error" which i have declared in the code.
– nawshin.ahmed
Nov 21 '18 at 9:01
Yes. I have tried onItemClickListener. Its getting the selected name. Now i want the specific code of that selected name for which i don't knw what to do. I am now basically want to run a query, get the code, then insert it to a new table.
– nawshin.ahmed
Nov 21 '18 at 9:04
@VladyslavMatviienko "error" is just a string which i have declared in the fucntion.
– nawshin.ahmed
Nov 21 '18 at 9:06
3
3
what is the error ? post error log
– Ganesh Gudghe
Nov 21 '18 at 8:59
what is the error ? post error log
– Ganesh Gudghe
Nov 21 '18 at 8:59
Because i actually don't want the row ID. i want a specific code which is in the table according to the merchantName. @pskink
– nawshin.ahmed
Nov 21 '18 at 9:00
Because i actually don't want the row ID. i want a specific code which is in the table according to the merchantName. @pskink
– nawshin.ahmed
Nov 21 '18 at 9:00
@GaneshGudghe there is no error. its returning the string "error" which i have declared in the code.
– nawshin.ahmed
Nov 21 '18 at 9:01
@GaneshGudghe there is no error. its returning the string "error" which i have declared in the code.
– nawshin.ahmed
Nov 21 '18 at 9:01
Yes. I have tried onItemClickListener. Its getting the selected name. Now i want the specific code of that selected name for which i don't knw what to do. I am now basically want to run a query, get the code, then insert it to a new table.
– nawshin.ahmed
Nov 21 '18 at 9:04
Yes. I have tried onItemClickListener. Its getting the selected name. Now i want the specific code of that selected name for which i don't knw what to do. I am now basically want to run a query, get the code, then insert it to a new table.
– nawshin.ahmed
Nov 21 '18 at 9:04
@VladyslavMatviienko "error" is just a string which i have declared in the fucntion.
– nawshin.ahmed
Nov 21 '18 at 9:06
@VladyslavMatviienko "error" is just a string which i have declared in the fucntion.
– nawshin.ahmed
Nov 21 '18 at 9:06
|
show 7 more comments
1 Answer
1
active
oldest
votes
Try this way..
public List<String> getMyItems(String name) {
List<String> stringList = new ArrayList<>();
SQLiteDatabase db = this.getReadableDatabase();
String selectQuery = "SELECT Item_Name FROM " + USER_TABLE_NAME + " WHERE Item_Name= " + name;
Cursor c = db.rawQuery(selectQuery, null);
if (c != null) {
c.moveToFirst();
while (c.isAfterLast() == false) {
String name = (c.getString(c.getColumnIndex("Item_Name")));
stringList.add(name);
c.moveToNext();
}
}
return stringList;
}
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Try this way..
public List<String> getMyItems(String name) {
List<String> stringList = new ArrayList<>();
SQLiteDatabase db = this.getReadableDatabase();
String selectQuery = "SELECT Item_Name FROM " + USER_TABLE_NAME + " WHERE Item_Name= " + name;
Cursor c = db.rawQuery(selectQuery, null);
if (c != null) {
c.moveToFirst();
while (c.isAfterLast() == false) {
String name = (c.getString(c.getColumnIndex("Item_Name")));
stringList.add(name);
c.moveToNext();
}
}
return stringList;
}
add a comment |
Try this way..
public List<String> getMyItems(String name) {
List<String> stringList = new ArrayList<>();
SQLiteDatabase db = this.getReadableDatabase();
String selectQuery = "SELECT Item_Name FROM " + USER_TABLE_NAME + " WHERE Item_Name= " + name;
Cursor c = db.rawQuery(selectQuery, null);
if (c != null) {
c.moveToFirst();
while (c.isAfterLast() == false) {
String name = (c.getString(c.getColumnIndex("Item_Name")));
stringList.add(name);
c.moveToNext();
}
}
return stringList;
}
add a comment |
Try this way..
public List<String> getMyItems(String name) {
List<String> stringList = new ArrayList<>();
SQLiteDatabase db = this.getReadableDatabase();
String selectQuery = "SELECT Item_Name FROM " + USER_TABLE_NAME + " WHERE Item_Name= " + name;
Cursor c = db.rawQuery(selectQuery, null);
if (c != null) {
c.moveToFirst();
while (c.isAfterLast() == false) {
String name = (c.getString(c.getColumnIndex("Item_Name")));
stringList.add(name);
c.moveToNext();
}
}
return stringList;
}
Try this way..
public List<String> getMyItems(String name) {
List<String> stringList = new ArrayList<>();
SQLiteDatabase db = this.getReadableDatabase();
String selectQuery = "SELECT Item_Name FROM " + USER_TABLE_NAME + " WHERE Item_Name= " + name;
Cursor c = db.rawQuery(selectQuery, null);
if (c != null) {
c.moveToFirst();
while (c.isAfterLast() == false) {
String name = (c.getString(c.getColumnIndex("Item_Name")));
stringList.add(name);
c.moveToNext();
}
}
return stringList;
}
edited Nov 21 '18 at 9:17
answered Nov 21 '18 at 9:09


Android TeamAndroid Team
7,57811135
7,57811135
add a comment |
add a comment |
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3
what is the error ? post error log
– Ganesh Gudghe
Nov 21 '18 at 8:59
Because i actually don't want the row ID. i want a specific code which is in the table according to the merchantName. @pskink
– nawshin.ahmed
Nov 21 '18 at 9:00
@GaneshGudghe there is no error. its returning the string "error" which i have declared in the code.
– nawshin.ahmed
Nov 21 '18 at 9:01
Yes. I have tried onItemClickListener. Its getting the selected name. Now i want the specific code of that selected name for which i don't knw what to do. I am now basically want to run a query, get the code, then insert it to a new table.
– nawshin.ahmed
Nov 21 '18 at 9:04
@VladyslavMatviienko "error" is just a string which i have declared in the fucntion.
– nawshin.ahmed
Nov 21 '18 at 9:06