Question

我需要使用where子句中的以下给定子查询在netezza中迁移数据。

示例： - -sourcewhereclause＆＃34;从abc..table1中选择*，其中id为（从xyz..table2中选择id）＆＃34;

请告诉我这是可能的。

Answer 1

如nz_migarte帮助中所述，您可以指定source子句子查询过滤器，但是，您只需要提供查询的where部分

-SourceWhereClause

# Normally, nz_migrate is used to migrate over the entire contents of a
# table -- all visible rows.  This option allows "you" to tack on a WHERE
# clause to the data that gets selected ... allowing "you" to migrate a
# subset of the table.  All the power (and responsibility) is put into your
# hands.  Do wrap the clause in double quotes so it will be passed into the
# script correctly.  Examples:
#
#    -SourceWhereClause  "customer_key = 2"
#    -SourceWhereClause  "customer_key in (1,3,5)"
#    -SourceWhereClause  "region_name = 'AMERICA' or region_key = 0"
#    -SourceWhereClause  "order_date between '1998-01-01' and '1998-12-31'"
#    -SourceWhereClause  "customer_num in (select cust_id from sales..delinquent_accounts)"

示例： -

-sourcewhereclause "id in (select id from xyz..table2)"

nz_migrate中的子查询

1 个答案: