filterring on IS NOT NULL using QSqlTableModel::setFilter(const QString &filter)











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If I'd like to filter on the IS NOT NULL condition using QSqlTableModel::setFilter(const QString &filter), what filter syntax should I pass to the method ?






sql qt sqlite pyqt pyside







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  • Just wondering whether you read the documentation and understood it or not. 🤔 I think the docs are pretty straightforward about this.
    – TrebuchetMS
    Nov 22 at 15:09















up vote
0
down vote

favorite












If I'd like to filter on the IS NOT NULL condition using QSqlTableModel::setFilter(const QString &filter), what filter syntax should I pass to the method ?






sql qt sqlite pyqt pyside







share|improve this question






















  • Just wondering whether you read the documentation and understood it or not. 🤔 I think the docs are pretty straightforward about this.
    – TrebuchetMS
    Nov 22 at 15:09













up vote
0
down vote

favorite









up vote
0
down vote

favorite











If I'd like to filter on the IS NOT NULL condition using QSqlTableModel::setFilter(const QString &filter), what filter syntax should I pass to the method ?






sql qt sqlite pyqt pyside







share|improve this question













If I'd like to filter on the IS NOT NULL condition using QSqlTableModel::setFilter(const QString &filter), what filter syntax should I pass to the method ?






sql qt sqlite pyqt pyside




sql qt sqlite pyqt pyside






share|improve this question













share|improve this question











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share|improve this question










asked Nov 22 at 14:46









iMath

8991648




8991648












  • Just wondering whether you read the documentation and understood it or not. 🤔 I think the docs are pretty straightforward about this.
    – TrebuchetMS
    Nov 22 at 15:09


















  • Just wondering whether you read the documentation and understood it or not. 🤔 I think the docs are pretty straightforward about this.
    – TrebuchetMS
    Nov 22 at 15:09
















Just wondering whether you read the documentation and understood it or not. 🤔 I think the docs are pretty straightforward about this.
– TrebuchetMS
Nov 22 at 15:09




Just wondering whether you read the documentation and understood it or not. 🤔 I think the docs are pretty straightforward about this.
– TrebuchetMS
Nov 22 at 15:09












1 Answer
1






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0
down vote



accepted










From the docs:




The filter is a SQL WHERE clause without the keyword WHERE (for example, name='Josephine').




So an appropriate filter with IS NOT NULL would resemble



mySqlTableModel.setFilter("id IS NOT NULL");





share|improve this answer





















  • Thanks! I tired with your answer before , it didn’t work , but a later examination showed that it is because I saved an empty string “” instead of null in the database that caused the filter failed , worked after changed to mySqlTableModel.setFilter(‘id IS NOT “”’).
    – iMath
    Nov 22 at 15:37












  • Ahaha, so the issue wasn't actually related with is not null. :P At least you've figured out and traced where the issue lay.
    – TrebuchetMS
    Nov 22 at 15:39













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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes








up vote
0
down vote



accepted










From the docs:




The filter is a SQL WHERE clause without the keyword WHERE (for example, name='Josephine').




So an appropriate filter with IS NOT NULL would resemble



mySqlTableModel.setFilter("id IS NOT NULL");





share|improve this answer





















  • Thanks! I tired with your answer before , it didn’t work , but a later examination showed that it is because I saved an empty string “” instead of null in the database that caused the filter failed , worked after changed to mySqlTableModel.setFilter(‘id IS NOT “”’).
    – iMath
    Nov 22 at 15:37












  • Ahaha, so the issue wasn't actually related with is not null. :P At least you've figured out and traced where the issue lay.
    – TrebuchetMS
    Nov 22 at 15:39

















up vote
0
down vote



accepted










From the docs:




The filter is a SQL WHERE clause without the keyword WHERE (for example, name='Josephine').




So an appropriate filter with IS NOT NULL would resemble



mySqlTableModel.setFilter("id IS NOT NULL");





share|improve this answer





















  • Thanks! I tired with your answer before , it didn’t work , but a later examination showed that it is because I saved an empty string “” instead of null in the database that caused the filter failed , worked after changed to mySqlTableModel.setFilter(‘id IS NOT “”’).
    – iMath
    Nov 22 at 15:37












  • Ahaha, so the issue wasn't actually related with is not null. :P At least you've figured out and traced where the issue lay.
    – TrebuchetMS
    Nov 22 at 15:39















up vote
0
down vote



accepted







up vote
0
down vote



accepted






From the docs:




The filter is a SQL WHERE clause without the keyword WHERE (for example, name='Josephine').




So an appropriate filter with IS NOT NULL would resemble



mySqlTableModel.setFilter("id IS NOT NULL");





share|improve this answer












From the docs:




The filter is a SQL WHERE clause without the keyword WHERE (for example, name='Josephine').




So an appropriate filter with IS NOT NULL would resemble



mySqlTableModel.setFilter("id IS NOT NULL");






share|improve this answer












share|improve this answer



share|improve this answer










answered Nov 22 at 15:06









TrebuchetMS

1,6031618




1,6031618












  • Thanks! I tired with your answer before , it didn’t work , but a later examination showed that it is because I saved an empty string “” instead of null in the database that caused the filter failed , worked after changed to mySqlTableModel.setFilter(‘id IS NOT “”’).
    – iMath
    Nov 22 at 15:37












  • Ahaha, so the issue wasn't actually related with is not null. :P At least you've figured out and traced where the issue lay.
    – TrebuchetMS
    Nov 22 at 15:39




















  • Thanks! I tired with your answer before , it didn’t work , but a later examination showed that it is because I saved an empty string “” instead of null in the database that caused the filter failed , worked after changed to mySqlTableModel.setFilter(‘id IS NOT “”’).
    – iMath
    Nov 22 at 15:37












  • Ahaha, so the issue wasn't actually related with is not null. :P At least you've figured out and traced where the issue lay.
    – TrebuchetMS
    Nov 22 at 15:39


















Thanks! I tired with your answer before , it didn’t work , but a later examination showed that it is because I saved an empty string “” instead of null in the database that caused the filter failed , worked after changed to mySqlTableModel.setFilter(‘id IS NOT “”’).
– iMath
Nov 22 at 15:37






Thanks! I tired with your answer before , it didn’t work , but a later examination showed that it is because I saved an empty string “” instead of null in the database that caused the filter failed , worked after changed to mySqlTableModel.setFilter(‘id IS NOT “”’).
– iMath
Nov 22 at 15:37














Ahaha, so the issue wasn't actually related with is not null. :P At least you've figured out and traced where the issue lay.
– TrebuchetMS
Nov 22 at 15:39






Ahaha, so the issue wasn't actually related with is not null. :P At least you've figured out and traced where the issue lay.
– TrebuchetMS
Nov 22 at 15:39




















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