How to Correctly Update SQLite Rows in Android Using ContentValues?

Updating SQLite Rows in Android with ContentValues: A Practical Guide

Problem:

Android developers often encounter challenges when updating specific rows in an SQLite database. While execSQL() and update() are available, using update() can lead to errors if ContentValues aren't correctly handled.

Solution:

The correct approach involves these steps:

1. Create a ContentValues object:

<code class="language-java">ContentValues cv = new ContentValues();</code>

2. Populate ContentValues with updated values:

<code class="language-java">cv.put("Field1", "Value1");
cv.put("Field2", "Value2");</code>

3. Execute the update using the update() method:

<code class="language-java">myDB.update(TableName, cv, "_id = ?", new String[]{rowId});</code>

Here, rowId is the primary key of the row to be modified. Remember to replace TableName with your table's name and ensure the field names ("Field1", "Field2") exactly match your database column names.

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