转自:https://blog.csdn.net/weixin_38653290/article/details/84639754 列转行 测试数据 把相同user_id的order_id按照逗号转为一行 下面再看一个例子 例如:把星座和血型一样的人归类到一起 总结 使用函数:concat_ws(’,’,collect_set(column)) 说明:coll... ...
constructor function hello_object return self as result, constructor function hello_object(obj_name varchar2/* :='world'*/) return self as result, member function to_string return varchar2, member function get_name return varchar2, member procedure set_name(i_name in varchar2), static procedur...
一.如其一条INSERT、UPDATE或DELETE话语在循环内施行,而且摘引到会合中的元素,那么,就把它放到FORALL话语中去。 二.如其SELECT INTO、FETCHE INTO或RETURNING INTO子句引述了一个聚合,那就配合BULK COLLECT子句一行应用。 三.如若或许的话,尽可能在应用程序和服务器其间运用主数组传递聚合。 四.如若DML操作失败时...
In some setups, for example including PgBouncer, setting the search_path via connection parameters fails. If this variable is set to "true", the image skips setting the search_path and trusts that the search_path of the Zabbix user is setup correctly in PostgreSQL database. ZBX_LOADMODULE Th...
= null) { String[] stringArray = (String[]) pgArray.getArray(); return Arrays.stream(stringArray).map(Integer::parseInt).collect(Collectors.toList()); } return null; } @Override public List<Integer> getNullableResult(ResultSet rs, int columnIndex) throws SQLException { return get...
2019-12-11 16:11 −行转列是指多行数据转换为一个列的字段。 列转行是值某一个字段转换成多行显示。 行转列 Hive行转列用到的函数:concat(str1,str2,...) --字段或字符串拼接concat_ws(sep, str1,str2) --以分隔符拼接每个字符串collect_set... ...
columnDefinition.setColumnSpecStrings(columnSpecStrings); }).collect(Collectors.toList()); ct.setColumnDefinitions(collect); String createSQL = ct.toString() .replaceAll("`","\"") .replaceAll("BIGINT UNIQUE NOT NULL AUTO_INCREMENT","BIGSERIAL PRIMARY KEY") ...
COLLECT 保留 COLUMN 保留 保留 保留 保留 COLUMN_NAME 非保留 非保留 非保留 COMMAND_FUNCTION 非保留 非保留 非保留 COMMAND_FUNCTION_CODE 非保留 非保留 COMMENT 非保留 COMMIT 非保留 保留 保留 保留 COMMITTED 非保留 非保留 非保留 非保留 COMPLETION 保留 CONDITION 保留 CONDITION_NUMBER 非保留 非...
("srsDimension") else None polys = [_f for _f in [gmlPolygon2wkt(poly, dim) \ for poly in geom.iter("{*}Polygon")] if _f] building_polys = building_polys + polys if len(building_polys) == 0: # Panic/Saxony mode, collect all <bldg:WallSurface> and <bldg:RoofSurface> nodes...
width_bucket(st_x(geom),117.057442,119.235188,20)grid_x,width_bucket(st_y(geom),30.431278,32.614617,20)grid_y,count(*),st_centroid(st_collect(geom))geom,array_agg(gid)gids from tpoint where st_x(geom)between 117.057442 and 119.235188 ...