I have a little program that writes to a SQLite database with 4
tables. When I do a query (either with rawQuery or
SQLiteQueryBuilder.query) the cursor only has column's from the first
table. Does anybody know how to do a query on 2 tables that have been
joined on a key value?
some code
public void onCreate(final SQLiteDatabase database) {
String sqlCreate =
CREATE TABLE IF NOT EXISTS Catch (
+ ID integer primary key
autoincrement,
+ GPSLON FLOAT,
+ GPSLAT FLOAT,
+ TimeTIMESTAMP,
+ BaitID INTEGER,
+ RigsID VARCHAR,
+ FishID VARCHAR,
+ SyncStatus INTEGER
+ );;
database.execSQL(sqlCreate);
sqlCreate =
CREATE TABLE IF NOT EXISTS bait (
+BaitID integer primary key
autoincrement,
+SyncStatus INTEGER,
+BaitNameVARCHAR unique);;
database.execSQL(sqlCreate);
sqlCreate =
CREATE TABLE IF NOT EXISTS rigs (
+RigsID integer primary key
autoincrement,
+SyncStatus INTEGER,
+RigsNameVARCHAR);;
database.execSQL(sqlCreate);
sqlCreate =
CREATE TABLE IF NOT EXISTS fishSpecies
(
+FishID integer primary key
autoincrement,
+SyncStatus INTEGER,
+FishName VARCHAR);;
database.execSQL(sqlCreate);
}
private long addBait(final Catch c) {
long id=-1;
Cursor data = db.query(bait,
null,
BaitName = '+c.baitText+',
null,
null,
null,
BaitName DESC);
if (data!=null) {
if (data.moveToFirst()){
id = data.getInt(0);
}
}
data.close();
if (id==-1){
final ContentValues initialValues = new ContentValues();
initialValues.put(BaitName, c.baitText);
initialValues.put(SyncStatus, c.syncStatus);
id = db.insertOrThrow(bait, null, initialValues);
}
return id;
}
public long addCatch(final Catch c) {
long baitId = addBait(c);
final ContentValues initialValues = new ContentValues();
initialValues.put(GPSLON,c.lon);
initialValues.put(GPSLAT, c.lat);
initialValues.put(Time, c.time.toString());
initialValues.put(BaitID, baitId);
initialValues.put(SyncStatus, c.syncStatus);
final long addedRow = db.insertOrThrow(Catch, null,
initialValues);
return addedRow;
}
public Cursor getAllMyFish() {
SQLiteQueryBuilder builder = new SQLiteQueryBuilder();
builder.setTables(Catch Bait);
Cursor c = builder.query(db, new String[]{}, null, new
String[]{},
null, null, null);
return c;
}
It is the cursor that is returned from getAllMyFish() that I want to
have fields from both Catch and Bait but I only get fields from Catch
when I look at the values returned from the cursor's getColumnName()
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