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Drop table and recreate if exist in sqflite flutter
2019 Community Moderator ElectionFlutter Sqflite multiple table modelsFlutter - How to update the table structure in Sqflite?How to do a database insert with SQFlite in FlutterHow to get the number of rows in a database table with Flutter SQFliteHow to do a database update with SQFlite in FlutterHow to do a database query with SQFlite in FlutterHow to create multiple tables in a database in sqflite?Flutter: How to load data in main.dart and sync json to sqfliteHow to get the total of column values in sqflite in flutter?How can I know if row is exist in flutter sqflite?
I want to drop table before populating server data if exist.
the Queries I'm trying
deleteOptionTable() async
final db = await database;
db.rawDelete("Delete * from option");
dropTable() async
final db = await database;
db.query('SELECT * FROM cloudnet360.db WHERE name =option and type=table');
I have tried something like this but nothing is happening.
void _insertOption(OptionsGroupList option) async
int idd = dbHelper.dropTable();
print('DROP TABLE: $idd');
PreferencesConnector myprefs= PreferencesConnector();
String merchantid=await myprefs.readString('merchantid');
String hashkey=await myprefs.readString('hashkey');
Map<String, dynamic> row =
DatabaseHelper.columnGroupId:option.grouprowid ,
DatabaseHelper.columnGroupName: option.groupname,
DatabaseHelper.columnIsRequired:option.isrequired ,
DatabaseHelper.columnMerchantId: merchantid,
DatabaseHelper.columnMerchantHashKey: hashkey,
;
int id = await dbHelper.insertOption(row);
print('inserted option row id: $id');
android dart 
flutter sqflite asked Mar 7 at 7:42
farhanafarhana
2,63552235
add a comment |
I want to drop table before populating server data if exist.
the Queries I'm trying
deleteOptionTable() async
final db = await database;
db.rawDelete("Delete * from option");
dropTable() async
final db = await database;
db.query('SELECT * FROM cloudnet360.db WHERE name =option and type=table');
I have tried something like this but nothing is happening.
void _insertOption(OptionsGroupList option) async
int idd = dbHelper.dropTable();
print('DROP TABLE: $idd');
PreferencesConnector myprefs= PreferencesConnector();
String merchantid=await myprefs.readString('merchantid');
String hashkey=await myprefs.readString('hashkey');
Map<String, dynamic> row =
DatabaseHelper.columnGroupId:option.grouprowid ,
DatabaseHelper.columnGroupName: option.groupname,
DatabaseHelper.columnIsRequired:option.isrequired ,
DatabaseHelper.columnMerchantId: merchantid,
DatabaseHelper.columnMerchantHashKey: hashkey,
;
int id = await dbHelper.insertOption(row);
print('inserted option row id: $id');
asked Mar 7 at 7:42
farhanafarhana
2,63552235
Don't understand flutter but ... the select statement in dropTable() will drop the table??
– AIMIN PAN
Mar 7 at 7:46
@AIMINPAN I'm unable to drop the table .
– farhana
Mar 7 at 7:59
did you tryint idd = await dbHelper.dropTable();? I assume it's async
– TruongSinh
Mar 7 at 11:16
add a comment |
I want to drop table before populating server data if exist.
the Queries I'm trying
deleteOptionTable() async
final db = await database;
db.rawDelete("Delete * from option");
dropTable() async
final db = await database;
db.query('SELECT * FROM cloudnet360.db WHERE name =option and type=table');
I have tried something like this but nothing is happening.
void _insertOption(OptionsGroupList option) async
int idd = dbHelper.dropTable();
print('DROP TABLE: $idd');
PreferencesConnector myprefs= PreferencesConnector();
String merchantid=await myprefs.readString('merchantid');
String hashkey=await myprefs.readString('hashkey');
Map<String, dynamic> row =
DatabaseHelper.columnGroupId:option.grouprowid ,
DatabaseHelper.columnGroupName: option.groupname,
DatabaseHelper.columnIsRequired:option.isrequired ,
DatabaseHelper.columnMerchantId: merchantid,
DatabaseHelper.columnMerchantHashKey: hashkey,
;
int id = await dbHelper.insertOption(row);
print('inserted option row id: $id');
asked Mar 7 at 7:42
farhanafarhana
2,63552235
I want to drop table before populating server data if exist.
the Queries I'm trying
deleteOptionTable() async
final db = await database;
db.rawDelete("Delete * from option");
dropTable() async
final db = await database;
db.query('SELECT * FROM cloudnet360.db WHERE name =option and type=table');
I have tried something like this but nothing is happening.
void _insertOption(OptionsGroupList option) async
int idd = dbHelper.dropTable();
print('DROP TABLE: $idd');
PreferencesConnector myprefs= PreferencesConnector();
String merchantid=await myprefs.readString('merchantid');
String hashkey=await myprefs.readString('hashkey');
Map<String, dynamic> row =
DatabaseHelper.columnGroupId:option.grouprowid ,
DatabaseHelper.columnGroupName: option.groupname,
DatabaseHelper.columnIsRequired:option.isrequired ,
DatabaseHelper.columnMerchantId: merchantid,
DatabaseHelper.columnMerchantHashKey: hashkey,
;
int id = await dbHelper.insertOption(row);
print('inserted option row id: $id');
asked Mar 7 at 7:42
farhanafarhana
2,63552235
asked Mar 7 at 7:42
farhanafarhana
2,63552235
asked Mar 7 at 7:42
farhanafarhana
2,63552235
asked Mar 7 at 7:42
farhanafarhana
2,63552235
asked Mar 7 at 7:42
farhanafarhana
2,63552235
2,63552235
Don't understand flutter but ... the select statement in dropTable() will drop the table??
– AIMIN PAN
Mar 7 at 7:46
@AIMINPAN I'm unable to drop the table .
– farhana
Mar 7 at 7:59
did you tryint idd = await dbHelper.dropTable();? I assume it's async
– TruongSinh
Mar 7 at 11:16
add a comment |
Don't understand flutter but ... the select statement in dropTable() will drop the table??
– AIMIN PAN
Mar 7 at 7:46
@AIMINPAN I'm unable to drop the table .
– farhana
Mar 7 at 7:59
did you tryint idd = await dbHelper.dropTable();? I assume it's async
– TruongSinh
Mar 7 at 11:16
Don't understand flutter but ... the select statement in dropTable() will drop the table??
– AIMIN PAN
Mar 7 at 7:46
Don't understand flutter but ... the select statement in dropTable() will drop the table??
– AIMIN PAN
Mar 7 at 7:46
@AIMINPAN I'm unable to drop the table .
– farhana
Mar 7 at 7:59
@AIMINPAN I'm unable to drop the table .
– farhana
Mar 7 at 7:59
did you try
int idd = await dbHelper.dropTable();? I assume it's async– TruongSinh
Mar 7 at 11:16
did you try
int idd = await dbHelper.dropTable();? I assume it's async– TruongSinh
Mar 7 at 11:16
add a comment |
1 Answer
1
active
oldest
votes
Indeed your dropTable method does not seem to actually drop any table:
To delete (drop) a table:
DROP TABLE IF EXISTS my_table
To clear a table content:
DELETE FROM my_table
answered Mar 8 at 18:52
alextkalextk
1,8361220
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
Indeed your dropTable method does not seem to actually drop any table:
To delete (drop) a table:
DROP TABLE IF EXISTS my_table
To clear a table content:
DELETE FROM my_table
answered Mar 8 at 18:52
alextkalextk
1,8361220
add a comment |
Indeed your dropTable method does not seem to actually drop any table:
To delete (drop) a table:
DROP TABLE IF EXISTS my_table
To clear a table content:
DELETE FROM my_table
answered Mar 8 at 18:52
alextkalextk
1,8361220
add a comment |
Indeed your dropTable method does not seem to actually drop any table:
To delete (drop) a table:
DROP TABLE IF EXISTS my_table
To clear a table content:
DELETE FROM my_table
answered Mar 8 at 18:52
alextkalextk
1,8361220
Indeed your dropTable method does not seem to actually drop any table:
To delete (drop) a table:
DROP TABLE IF EXISTS my_table
To clear a table content:
DELETE FROM my_table
answered Mar 8 at 18:52
alextkalextk
1,8361220
answered Mar 8 at 18:52
alextkalextk
1,8361220
answered Mar 8 at 18:52
alextkalextk
1,8361220
answered Mar 8 at 18:52
alextkalextk
1,8361220
1,8361220
add a comment |
add a comment |
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Don't understand flutter but ... the select statement in dropTable() will drop the table??
– AIMIN PAN
Mar 7 at 7:46
@AIMINPAN I'm unable to drop the table .
– farhana
Mar 7 at 7:59
did you try
int idd = await dbHelper.dropTable();? I assume it's async– TruongSinh
Mar 7 at 11:16