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@ -26,7 +26,7 @@ import com.example.notes_master.src.net.micode.notes.data.Notes.DataColumns;
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import com.example.notes_master.src.net.micode.notes.data.Notes.DataConstants;
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import com.example.notes_master.src.net.micode.notes.data.Notes.DataConstants;
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import com.example.notes_master.src.net.micode.notes.data.Notes.NoteColumns;
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import com.example.notes_master.src.net.micode.notes.data.Notes.NoteColumns;
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//数据库帮助类，用于辅助创建、处理数据库的条目
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public class NotesDatabaseHelper extends SQLiteOpenHelper {
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public class NotesDatabaseHelper extends SQLiteOpenHelper {
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private static final String DB_NAME = "note.db";
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private static final String DB_NAME = "note.db";
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@ -43,168 +43,168 @@ public class NotesDatabaseHelper extends SQLiteOpenHelper {
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private static NotesDatabaseHelper mInstance;
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private static NotesDatabaseHelper mInstance;
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private static final String CREATE_NOTE_TABLE_SQL =
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private static final String CREATE_NOTE_TABLE_SQL =
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"CREATE TABLE " + TABLE.NOTE + "(" +
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"CREATE TABLE " + TABLE.NOTE + "(" +
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NoteColumns.ID + " INTEGER PRIMARY KEY," +
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NoteColumns.ID + " INTEGER PRIMARY KEY," +
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NoteColumns.PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.ALERTED_DATE + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.ALERTED_DATE + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.BG_COLOR_ID + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.BG_COLOR_ID + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
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NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
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NoteColumns.HAS_ATTACHMENT + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.HAS_ATTACHMENT + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
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NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
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NoteColumns.NOTES_COUNT + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.NOTES_COUNT + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.SNIPPET + " TEXT NOT NULL DEFAULT ''," +
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NoteColumns.SNIPPET + " TEXT NOT NULL DEFAULT ''," +
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NoteColumns.TYPE + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.TYPE + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.WIDGET_ID + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.WIDGET_ID + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.WIDGET_TYPE + " INTEGER NOT NULL DEFAULT -1," +
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NoteColumns.WIDGET_TYPE + " INTEGER NOT NULL DEFAULT -1," +
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NoteColumns.SYNC_ID + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.SYNC_ID + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.LOCAL_MODIFIED + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.LOCAL_MODIFIED + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.ORIGIN_PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.ORIGIN_PARENT_ID + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," +
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NoteColumns.GTASK_ID + " TEXT NOT NULL DEFAULT ''," +
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NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" +
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NoteColumns.VERSION + " INTEGER NOT NULL DEFAULT 0" +
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")";
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")";
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private static final String CREATE_DATA_TABLE_SQL =
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private static final String CREATE_DATA_TABLE_SQL =
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"CREATE TABLE " + TABLE.DATA + "(" +
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"CREATE TABLE " + TABLE.DATA + "(" +
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DataColumns.ID + " INTEGER PRIMARY KEY," +
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DataColumns.ID + " INTEGER PRIMARY KEY," +
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DataColumns.MIME_TYPE + " TEXT NOT NULL," +
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DataColumns.MIME_TYPE + " TEXT NOT NULL," +
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DataColumns.NOTE_ID + " INTEGER NOT NULL DEFAULT 0," +
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DataColumns.NOTE_ID + " INTEGER NOT NULL DEFAULT 0," +
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NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
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NoteColumns.CREATED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
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NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
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NoteColumns.MODIFIED_DATE + " INTEGER NOT NULL DEFAULT (strftime('%s','now') * 1000)," +
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DataColumns.CONTENT + " TEXT NOT NULL DEFAULT ''," +
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DataColumns.CONTENT + " TEXT NOT NULL DEFAULT ''," +
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DataColumns.DATA1 + " INTEGER," +
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DataColumns.DATA1 + " INTEGER," +
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DataColumns.DATA2 + " INTEGER," +
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DataColumns.DATA2 + " INTEGER," +
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DataColumns.DATA3 + " TEXT NOT NULL DEFAULT ''," +
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DataColumns.DATA3 + " TEXT NOT NULL DEFAULT ''," +
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DataColumns.DATA4 + " TEXT NOT NULL DEFAULT ''," +
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DataColumns.DATA4 + " TEXT NOT NULL DEFAULT ''," +
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DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''" +
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DataColumns.DATA5 + " TEXT NOT NULL DEFAULT ''" +
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")";
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")";
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private static final String CREATE_DATA_NOTE_ID_INDEX_SQL =
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private static final String CREATE_DATA_NOTE_ID_INDEX_SQL =
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"CREATE INDEX IF NOT EXISTS note_id_index ON " +
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"CREATE INDEX IF NOT EXISTS note_id_index ON " +
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TABLE.DATA + "(" + DataColumns.NOTE_ID + ");";
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TABLE.DATA + "(" + DataColumns.NOTE_ID + ");";
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/**
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/**
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* Increase folder's note count when move note to the folder
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* Increase folder's note count when move note to the folder
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*/
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*/
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private static final String NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER =
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private static final String NOTE_INCREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER =
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"CREATE TRIGGER increase_folder_count_on_update "+
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"CREATE TRIGGER increase_folder_count_on_update "+
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" AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE +
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" AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE +
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" BEGIN " +
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" BEGIN " +
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" UPDATE " + TABLE.NOTE +
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" UPDATE " + TABLE.NOTE +
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" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" +
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" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" +
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" WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" +
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" WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" +
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" END";
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" END";
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/**
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/**
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* Decrease folder's note count when move note from folder
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* Decrease folder's note count when move note from folder
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*/
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*/
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private static final String NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER =
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private static final String NOTE_DECREASE_FOLDER_COUNT_ON_UPDATE_TRIGGER =
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"CREATE TRIGGER decrease_folder_count_on_update " +
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"CREATE TRIGGER decrease_folder_count_on_update " +
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" AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE +
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" AFTER UPDATE OF " + NoteColumns.PARENT_ID + " ON " + TABLE.NOTE +
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" BEGIN " +
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" BEGIN " +
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" UPDATE " + TABLE.NOTE +
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" UPDATE " + TABLE.NOTE +
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" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" +
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" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" +
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" WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID +
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" WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID +
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" AND " + NoteColumns.NOTES_COUNT + ">0" + ";" +
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" AND " + NoteColumns.NOTES_COUNT + ">0" + ";" +
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" END";
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" END";
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/**
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/**
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* Increase folder's note count when insert new note to the folder
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* Increase folder's note count when insert new note to the folder
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*/
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*/
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private static final String NOTE_INCREASE_FOLDER_COUNT_ON_INSERT_TRIGGER =
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private static final String NOTE_INCREASE_FOLDER_COUNT_ON_INSERT_TRIGGER =
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"CREATE TRIGGER increase_folder_count_on_insert " +
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"CREATE TRIGGER increase_folder_count_on_insert " +
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" AFTER INSERT ON " + TABLE.NOTE +
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" AFTER INSERT ON " + TABLE.NOTE +
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" BEGIN " +
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" BEGIN " +
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" UPDATE " + TABLE.NOTE +
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" UPDATE " + TABLE.NOTE +
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" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" +
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" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + " + 1" +
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" WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" +
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" WHERE " + NoteColumns.ID + "=new." + NoteColumns.PARENT_ID + ";" +
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" END";
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" END";
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/**
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/**
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* Decrease folder's note count when delete note from the folder
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* Decrease folder's note count when delete note from the folder
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*/
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*/
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private static final String NOTE_DECREASE_FOLDER_COUNT_ON_DELETE_TRIGGER =
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private static final String NOTE_DECREASE_FOLDER_COUNT_ON_DELETE_TRIGGER =
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"CREATE TRIGGER decrease_folder_count_on_delete " +
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"CREATE TRIGGER decrease_folder_count_on_delete " +
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" AFTER DELETE ON " + TABLE.NOTE +
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" AFTER DELETE ON " + TABLE.NOTE +
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" BEGIN " +
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" BEGIN " +
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" UPDATE " + TABLE.NOTE +
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" UPDATE " + TABLE.NOTE +
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" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" +
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" SET " + NoteColumns.NOTES_COUNT + "=" + NoteColumns.NOTES_COUNT + "-1" +
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" WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID +
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" WHERE " + NoteColumns.ID + "=old." + NoteColumns.PARENT_ID +
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" AND " + NoteColumns.NOTES_COUNT + ">0;" +
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" AND " + NoteColumns.NOTES_COUNT + ">0;" +
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" END";
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" END";
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/**
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/**
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* Update note's content when insert data with type {@link DataConstants#NOTE}
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* Update note's content when insert data with type {@link DataConstants#NOTE}
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*/
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*/
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private static final String DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER =
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private static final String DATA_UPDATE_NOTE_CONTENT_ON_INSERT_TRIGGER =
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"CREATE TRIGGER update_note_content_on_insert " +
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"CREATE TRIGGER update_note_content_on_insert " +
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" AFTER INSERT ON " + TABLE.DATA +
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" AFTER INSERT ON " + TABLE.DATA +
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" WHEN new." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
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" WHEN new." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
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" BEGIN" +
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" BEGIN" +
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" UPDATE " + TABLE.NOTE +
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" UPDATE " + TABLE.NOTE +
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" SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +
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" SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +
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" WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" +
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" WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" +
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" END";
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" END";
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/**
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/**
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* Update note's content when data with {@link DataConstants#NOTE} type has changed
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* Update note's content when data with {@link DataConstants#NOTE} type has changed
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*/
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*/
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private static final String DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER =
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private static final String DATA_UPDATE_NOTE_CONTENT_ON_UPDATE_TRIGGER =
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"CREATE TRIGGER update_note_content_on_update " +
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"CREATE TRIGGER update_note_content_on_update " +
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" AFTER UPDATE ON " + TABLE.DATA +
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" AFTER UPDATE ON " + TABLE.DATA +
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" WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
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" WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
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" BEGIN" +
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" BEGIN" +
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" UPDATE " + TABLE.NOTE +
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" UPDATE " + TABLE.NOTE +
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" SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +
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" SET " + NoteColumns.SNIPPET + "=new." + DataColumns.CONTENT +
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" WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" +
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" WHERE " + NoteColumns.ID + "=new." + DataColumns.NOTE_ID + ";" +
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" END";
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" END";
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/**
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/**
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* Update note's content when data with {@link DataConstants#NOTE} type has deleted
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* Update note's content when data with {@link DataConstants#NOTE} type has deleted
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*/
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*/
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private static final String DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER =
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private static final String DATA_UPDATE_NOTE_CONTENT_ON_DELETE_TRIGGER =
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"CREATE TRIGGER update_note_content_on_delete " +
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"CREATE TRIGGER update_note_content_on_delete " +
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" AFTER delete ON " + TABLE.DATA +
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" AFTER delete ON " + TABLE.DATA +
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" WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
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" WHEN old." + DataColumns.MIME_TYPE + "='" + DataConstants.NOTE + "'" +
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" BEGIN" +
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" BEGIN" +
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" UPDATE " + TABLE.NOTE +
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" UPDATE " + TABLE.NOTE +
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" SET " + NoteColumns.SNIPPET + "=''" +
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" SET " + NoteColumns.SNIPPET + "=''" +
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" WHERE " + NoteColumns.ID + "=old." + DataColumns.NOTE_ID + ";" +
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" WHERE " + NoteColumns.ID + "=old." + DataColumns.NOTE_ID + ";" +
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" END";
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" END";
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/**
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/**
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* Delete datas belong to note which has been deleted
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* Delete datas belong to note which has been deleted
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*/
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*/
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private static final String NOTE_DELETE_DATA_ON_DELETE_TRIGGER =
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private static final String NOTE_DELETE_DATA_ON_DELETE_TRIGGER =
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"CREATE TRIGGER delete_data_on_delete " +
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"CREATE TRIGGER delete_data_on_delete " +
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" AFTER DELETE ON " + TABLE.NOTE +
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" AFTER DELETE ON " + TABLE.NOTE +
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" BEGIN" +
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" BEGIN" +
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" DELETE FROM " + TABLE.DATA +
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" DELETE FROM " + TABLE.DATA +
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" WHERE " + DataColumns.NOTE_ID + "=old." + NoteColumns.ID + ";" +
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" WHERE " + DataColumns.NOTE_ID + "=old." + NoteColumns.ID + ";" +
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" END";
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" END";
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/**
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/**
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* Delete notes belong to folder which has been deleted
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* Delete notes belong to folder which has been deleted
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*/
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*/
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private static final String FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER =
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private static final String FOLDER_DELETE_NOTES_ON_DELETE_TRIGGER =
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"CREATE TRIGGER folder_delete_notes_on_delete " +
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"CREATE TRIGGER folder_delete_notes_on_delete " +
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" AFTER DELETE ON " + TABLE.NOTE +
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" AFTER DELETE ON " + TABLE.NOTE +
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" BEGIN" +
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" BEGIN" +
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" DELETE FROM " + TABLE.NOTE +
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" DELETE FROM " + TABLE.NOTE +
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" WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
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" WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
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" END";
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" END";
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/**
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/**
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* Move notes belong to folder which has been moved to trash folder
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* Move notes belong to folder which has been moved to trash folder
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*/
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*/
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private static final String FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER =
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private static final String FOLDER_MOVE_NOTES_ON_TRASH_TRIGGER =
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"CREATE TRIGGER folder_move_notes_on_trash " +
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"CREATE TRIGGER folder_move_notes_on_trash " +
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" AFTER UPDATE ON " + TABLE.NOTE +
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" AFTER UPDATE ON " + TABLE.NOTE +
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" WHEN new." + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER +
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" WHEN new." + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER +
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" BEGIN" +
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" BEGIN" +
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" UPDATE " + TABLE.NOTE +
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" UPDATE " + TABLE.NOTE +
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" SET " + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER +
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" SET " + NoteColumns.PARENT_ID + "=" + Notes.ID_TRASH_FOLER +
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" WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
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" WHERE " + NoteColumns.PARENT_ID + "=old." + NoteColumns.ID + ";" +
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" END";
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" END";
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public NotesDatabaseHelper(Context context) {
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public NotesDatabaseHelper(Context context) {
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super(context, DB_NAME, null, DB_VERSION);
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super(context, DB_NAME, null, DB_VERSION);
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王岚馨
1 year ago