SQLite Query in non case sensitive alphabetical order [duplicate]

问题

This question already has answers here:

How to use SQL Order By statement to sort results case insensitive? (3 answers)

Closed 3 years ago.

All I want to do is grab the stuff in alphabetical order and ignore the capital letters.

db.rawQuery("SELECT " + catName + " FROM "+tableName+" ORDER BY "+catName+" ASC COLLATE NOCASE;", null);

This is the code I'm using above, but it always gives me an SQLite exception saying that COLLATE is a syntax error.

android.database.sqlite.SQLiteException: near "COLLATE": syntax error: , while compiling: SELECT Artist FROM testTable COLLATE NOCASE ASC

回答1:

COLLATE goes before the order direction:

db.rawQuery("SELECT " + catName 
           + " FROM " +tableName 
        +" ORDER BY "+catName+" COLLATE NOCASE ASC;", null);

But you don't need the ASC -- that's the default so you could just as well use:

db.rawQuery("SELECT "+ catName 
            +" FROM "+ tableName 
        +" ORDER BY "+ catName +" COLLATE NOCASE;", null);

回答2:

add COLLATE NOCASE after orderBy String.

db.query(table, columns, selection, selectionArgs, groupBy, having, orderBy + " COLLATE NOCASE ASC");

here, order by ASC or DESC depends on your need.

回答3:

This should work too I think:

db.rawQuery("SELECT "+ catName 
        +" FROM "+ tableName 
    +" ORDER BY lower("+ catName +");", null);

来源：https://stackoverflow.com/questions/5958039/sqlite-query-in-non-case-sensitive-alphabetical-order