Cassandra 2.0 卡桑德拉阅读专栏
Cassandra 2.0 卡桑德拉阅读专栏,cassandra-2.0,Cassandra 2.0,String cqlStatement=“从本地选择*”; for(行:session.execute(cqlStatement)){ System.out.println(row.toString()); } 如何从所选行中获取每个列的值?如果您使用的是cassandra ds驱动程序,以下内容应该适用于您 String cqlStatement = "SELECT * FROM local"; for (Row row : session.execute(cqlStatement))
String cqlStatement=“从本地选择*”;
for(行:session.execute(cqlStatement)){
System.out.println(row.toString());
}
如何从所选行中获取每个列的值?如果您使用的是cassandra ds驱动程序,以下内容应该适用于您
String cqlStatement = "SELECT * FROM local";
for (Row row : session.execute(cqlStatement))
{
row.getString("columnName"); // for string data type
// row.getBool("columnName"); for boolean data type
// row.getUUID("columnName"); for UUID type
// row.getVarint("columnName"); for int type
// row.getLong("columnName"); for long type
// row.getDate("columnName"); for date type
// row.getBytes("columnName"); for bytes/anonymous type
}