Question

我有两个桌子：

violations_details:
LOAD
    "appname",
    "snapshot_id",
    "metric_id",
    "object_id",
    "object_type",
    "object_full_name",
    "metric_num_value",
    "status",
    "module_name",
    "Anz_Fehler",
    "violations_details_kz",
    "error_abs";
SQL SELECT 
    "appname",
    "snapshot_id",
    "metric_id",
    "object_id",
    "object_type",
    "object_full_name",
    "metric_num_value",
    "status",
    "module_name",
    1 as "Anz_Fehler",
    1 as "violations_details_kz",
    CASE WHEN status = 'Added' THEN 1 
         WHEN status = 'Deleted' THEN -1 
         ELSE 0
    END as error_abs
FROM "postgres"."cast_xapp_tools"."datapond_violations_details";

和

LOAD
    gen_id,
    gen_app,
    gen_patt1,
    gen_patt2,
    gen_class FROM [lib://AttachedFiles/gen_pattern.xlsx] (ooxml, embedded labels, table is tbl_gen_pattern);

现在，我想将coloumn gen_id加入到表violation_details中，其中object_full_name类似于gen_patt1。如果与gen_id不匹配，则violation_details必须为空白。

大小：表violation_details> 400万行 talbe gen_pattern = 55行

有什么简单的主意吗？我认为我必须在其中使用resident子句，但每次尝试都会失败。

谢谢

Answer 1

Violations_details:
LOAD
    "appname",
    "snapshot_id",
    "metric_id",
    "object_id",
    "object_type",
    "object_full_name" as gen_id,
    "metric_num_value",
    "status",
    "module_name",
    "Anz_Fehler",
    "violations_details_kz",
    "error_abs";
SQL SELECT 
    "appname",
    "snapshot_id",
    "metric_id",
    "object_id",
    "object_type",
    "object_full_name",
    "metric_num_value",
    "status",
    "module_name",
    1 as "Anz_Fehler",
    1 as "violations_details_kz",
    CASE WHEN status = 'Added' THEN 1 
         WHEN status = 'Deleted' THEN -1 
         ELSE 0
    END as error_abs
FROM "postgres"."cast_xapp_tools"."datapond_violations_details";

Left join

LOAD
    gen_id,
    gen_app,
    gen_patt1,
    gen_patt2,
    gen_class FROM [lib://AttachedFiles/gen_pattern.xlsx]  (ooxml, embedded labels, table is tbl_gen_pattern);

Answer 2

您非常亲密-实际上您不必使用resident，因为您可以在加载时立即加入它。 Qlik连接具有相同名称的字段。我不确定您要哪个字段，所以我只是假设object_id与gen_id相同（请注意如何将object_id更改为gen_id的别名）。因此，Qlik现在知道要在该字段上联接表（尽管您可能希望在其他字段上联接表）。

violations_details:
LOAD
    "appname",
    "snapshot_id",
    "metric_id",
    "object_id" as gen_id,
    "object_type",
    "object_full_name",
    "metric_num_value",
    "status",
    "module_name",
    "Anz_Fehler",
    "violations_details_kz",
    "error_abs";
SQL SELECT 
    "appname",
    "snapshot_id",
    "metric_id",
    "object_id",
    "object_type",
    "object_full_name",
    "metric_num_value",
    "status",
    "module_name",
    1 as "Anz_Fehler",
    1 as "violations_details_kz",
    CASE WHEN status = 'Added' THEN 1 
         WHEN status = 'Deleted' THEN -1 
         ELSE 0
    END as error_abs
FROM "postgres"."cast_xapp_tools"."datapond_violations_details";

left join (violations_details)
LOAD
    gen_id,
    gen_app,
    gen_patt1,
    gen_patt2,
    gen_class 
FROM [lib://AttachedFiles/gen_pattern.xlsx] (ooxml, embedded labels, table is tbl_gen_pattern);

Qlik Sense：左联接两个常驻表

2 个答案: