I am trying to query a list of rows from the database. It has 7 fields (columns) (A,B,C,VA,VB,VC,LISTED). SELECT * FROM datas WHERE ((A=1 OR A IS NULL) AND (B=1 OR B IS NULL) AND (C=1 OR C IS NULL)) — A/B/C are either 1 or NULL AND (VA=1 AND VB=1 AND VC=1) — VA/VB/VC… Read More NOT Combination with AND

Long story short, lots of bogus data entered the SQLite database over time, where there is valid data before a null character in a varchar column – and then bogus data afterwards. I’m using \u0000 to represent the null character here. validData\u0000bogusData I need to clean the dataset so that the data after null character… Read More How to select rows with \u0000 (null character) in a varchar column in SQLite?

Long story short, lots of bogus data entered the SQLite database over time, where there is valid data before a null character in a varchar column – and then bogus data afterwards. I’m using \u0000 to represent the null character here. validData\u0000bogusData I need to clean the dataset so that the data after null character… Read More How to select rows with \u0000 (null character) in a varchar column in SQLite?

I have a table that contains a group number column and a data column: GROUP DataColumn 1 NULL 1 NULL 1 "hello" 1 NULL 2 "bye" 2 "sorry" 3 NULL 3 NULL 3 NULL I want to return the string in the DataColunm as long as all rows in that group contain a string (no… Read More Need a SQL select statement to return rows that have the same id in one column and distinct value in another column

This seems like a rather straightforward problem, yet I have not been able to find the solution: In a table test, I have some subset of columns which I am interested in, say a,b,c,d,e,f. Some or most of these columns are NULL, but at least one is always filled. Now for some rows, returned, say… Read More Find rows with same non-null values