Question

I am new to android development and I have a question about the insert method of the SQLiteDatabase class.

For example, if I want to insert one row, which has only one column, I would do the following:

SQLiteDatabase db = openHelper.getWritableDatabase();
ContentValues cv = new ContentValues();
cv.put("first_name", "my name");

db.insert("MyTable", null, cv);

The problem is that I don’t know how to use this insert method for two or more columns, for instance, if I wanted to add firstName and lastName. I know how to do that with the classic SQL syntax.

Answer 1

Use

ContentValues initialValues = new ContentValues(); 
initialValues.put("colname1", "value1");
initialValues.put("colname2", "value2");
...
long rowId = mDb.insert(DATABASE_TABLE, null, initialValues);

You can put many pairs into ContentValues.