hbase時間段查詢 模糊匹配

2021-07-16 18:27:42 字數 2231 閱讀 6921

比較運算子 comparefilter.compareop

equal                                  相等

greater                              大於

greater_or_equal           大於等於

less                                      小於

less_or_equal                  小於等於

not_equal                        不等於

singlecolumnvaluefilter列值過濾器（時間段查詢）

filterlist filterlist=new filterlist();


string stime = "2016-07-27 00:00:00";


string etime = "2016-07-30 12:04:42";


filter stimefilter = new singlecolumnvaluefilter(bytes.tobytes("base_info"),bytes.tobytes("datetime"), compareop.greater_or_equal, bytes.tobytes(stime));


filterlist.addfilter(stimefilter);


filter etimefilter = new singlecolumnvaluefilter(bytes.tobytes("base_info"),bytes.tobytes("datetime"), compareop.less_or_equal,bytes.tobytes(etime));


filterlist.addfilter(etimefilter);


scan.setfilter(filterlist);
模糊匹配

filterlist filterlist=new filterlist();


substringcomparator comp = new substringcomparator("123456789");


filter likefilter = new singlecolumnvaluefilter(bytes.tobytes("base_info"),


bytes.tobytes("userid"), compareop.equal, comp);


filterlist.addfilter(likefilter);


scan.setfilter(filterlist);
完全匹配

filter equalfilter = new singlecolumnvaluefilter(bytes.tobytes("base_info"),


bytes.tobytes("userid"), compareop.equal, "123456789");
pagefilter指定頁面行數，返回對應行數的結果集。最多返回100條資料

filterlist filterlist=new filterlist();


filter pagefilter = new pagefilter(100);


filterlist.addfilter(pagefilter);
多條件聯合查詢

filterlist filterlist=new filterlist();


//如果先設定最大返回條數，會先查詢出100條資料，在這100條資料中  再過濾userid為123456789的資料。filter順序要特別注意，會造成查詢不準確。


filter pagefilter = new pagefilter(100);


filterlist.addfilter(pagefilter);


substringcomparator comp = new substringcomparator("123456789");


filter likefilter = new singlecolumnvaluefilter(bytes.tobytes("base_info"),


bytes.tobytes("userid"), compareop.equal, comp);


filterlist.addfilter(likefilter);


scan.setfilter(filterlist);

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