我有一个API,可提供名为 corporateHoliday.txt 的json数据文本文件。
数据如下:
{
"holiday_id":"1712010100000104",
"holiday_date":"2018-12-30 00:00:00.0",
"holiday_description":"SUNDAY",
"holiday_status":"A"
},
{
"holiday_id":"1712010100000103",
"holiday_date":"2018-12-29 00:00:00.0",
"holiday_description":"SATURDAY",
"holiday_status":"A"
}
我的postgres表属性如下所示: t_leave_holida(objectid,holiday_date,description,recstatus)
我想将这些json数据从txt文件导入到postgres数据库表中吗?
答案 0 :(得分:0)
您可以使用jsonb
类型,只需从json中选择数据即可,例如:
db=# create table t_leave_holida(objectid bigint, holiday_date timestamp(1), description text,recstatus text);
db=# insert into t_leave_holida select (d->>'holiday_id')::bigint, (d->>'holiday_date')::timestamp, d->>'holiday_description', d->>'holiday_status' from (select '{
"holiday_id":"1712010100000104",
"holiday_date":"2018-12-30 00:00:00.0",
"holiday_description":"SUNDAY",
"holiday_status":"A"
}'::jsonb d) ali;
INSERT 0 1
db=# select * from t_leave_holida;
objectid | holiday_date | description | recstatus
------------------+---------------------+-------------+-----------
1712010100000104 | 2018-12-30 00:00:00 | SUNDAY | A
(1 row)
答案 1 :(得分:0)
构造一个json数组,我们可以将所有记录插入t_leave_holida
insert into t_leave_holida(objectid, holiday_date,description,recstatus) select holiday_id,holiday_date,holiday_description,holiday_status from json_to_recordset( '[ { "holiday_id":"1712010100000104", "holiday_date":"2018-12-30 00:00:00.0", "holiday_description":"SUNDAY", "holiday_status":"A" }, { "holiday_id":"1712010100000103", "holiday_date":"2018-12-29 00:00:00.0", "holiday_description":"SATURDAY", "holiday_status":"A" } ]' ) as x(holiday_id bigint, holiday_date date, holiday_description text,holiday_status text);