Android SQLite ORDER BY COLLATE "NOCASE" and "LOCALIZED" together

Question

Is there any way to order dataset with locale alphabetical order without case sensitivity? I have found "COLLATE LOCALIZED", "COLLATE NOCASE", but "COLLATE LOCALIZED NOCASE" shows error (also in the reverse order).

Thanks for any response!

Answer 1

我没有找到任何简单的方法。我创建了其他排序表列，其中包含规范化数据（标记为here）。为规范化表列创建常量名称前缀：

distfunc <- function(data, ID1, ID2, n, m) {
  X1 <- ID1
  X2 <- ID2
  X3 <- unlist(mapply(':', n, m))
  data <- rbind(data,data.frame(X1, X2, X3))
  return(data)
}

创建表（对于文本列创建一个带前缀的列）：

public static final String ASCII_PREFIX = "ascii_";

更改了表数据填充（添加特殊列的标准化数据）：

String sql = "CREATE TABLE IF NOT EXISTS " + tableName + " (";
for( columnModel column: table.columns ) {
  if( column.position > 0 ){  sql += ", ";  }
  sql += column.dbName + " " + column.dbType;
}
for( columnModel column: table.columns ) {
  if( column.dbType.equals("TEXT") ) {
    sql += ", " + ASCII_PREFIX + column.dbName + " " + column.dbType;
  }
}
sql += ")";
db.execSQL(sql);

然后我为文本列排序：

//...cycle for data filling...
ContentValues values = new ContentValues();
for( columnModel column: table.columns ) {
     values.put(column.dbName, valueStr);
     if( column.dbType.equals("TEXT") ){
      values.put(ASCII_PREFIX + column.dbName, normalize(valueStr));
     }
}
db.insert(tableName, null, values);

Answer 2

这对我有用：

field COLLATE LOCALIZED, field COLLATE NOCASE