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 ?

asked Nov 22 at 14:46

iMath

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

add a comment |

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 ?

asked Nov 22 at 14:46

iMath

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

add a comment |

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 ?

asked Nov 22 at 14:46

iMath

8991648

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

asked Nov 22 at 14:46

iMath

8991648

asked Nov 22 at 14:46

iMath

8991648

asked Nov 22 at 14:46

iMath

8991648

asked Nov 22 at 14:46

iMath

8991648

asked Nov 22 at 14:46

iMath

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

add a comment |

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

add a comment |

1 Answer
1

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oldest

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0
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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");

answered Nov 22 at 15:06

TrebuchetMS

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

add a comment |

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1 Answer
1

active

oldest

votes

1 Answer
1

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");

answered Nov 22 at 15:06

TrebuchetMS

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

add a comment |

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");

answered Nov 22 at 15:06

TrebuchetMS

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

add a comment |

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");

answered Nov 22 at 15:06

TrebuchetMS

1,6031618

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");

answered Nov 22 at 15:06

TrebuchetMS

1,6031618

answered Nov 22 at 15:06

TrebuchetMS

1,6031618

answered Nov 22 at 15:06

TrebuchetMS

1,6031618

answered Nov 22 at 15:06

TrebuchetMS

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

add a comment |

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

add a comment |

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