如何解决使用psql运行CREATE TABLE之后，找不到该表
我一直试图在PostgreSQL中创建一个表，但是当我尝试使用\dt-Did not find any relations.列出表时出现以下错误
我在名为create的数据库中使用了以下create table jobs( id serial primary key,title text,link text,company text)语句-scrape
如果我使用\dt *.*，则会出现似乎是内置表的列表-
List of relations
Schema | Name | Type | Owner
--------------------+-------------------------+-------+----------
information_schema | sql_features | table | postgres
information_schema | sql_implementation_info | table | postgres
information_schema | sql_languages | table | postgres
information_schema | sql_packages | table | postgres
information_schema | sql_parts | table | postgres
information_schema | sql_sizing | table | postgres
information_schema | sql_sizing_profiles | table | postgres
pg_catalog | pg_aggregate | table | postgres
pg_catalog | pg_am | table | postgres
pg_catalog | pg_amop | table | postgres
pg_catalog | pg_amproc | table | postgres
pg_catalog | pg_attrdef | table | postgres
pg_catalog | pg_attribute | table | postgres
pg_catalog | pg_auth_members | table | postgres
pg_catalog | pg_authid | table | postgres
pg_catalog | pg_cast | table | postgres
pg_catalog | pg_class | table | postgres
pg_catalog | pg_collation | table | postgres
pg_catalog | pg_constraint | table | postgres
pg_catalog | pg_conversion | table | postgres
pg_catalog | pg_database | table | postgres
pg_catalog | pg_db_role_setting | table | postgres
pg_catalog | pg_default_acl | table | postgres
pg_catalog | pg_depend | table | postgres
pg_catalog | pg_description | table | postgres
pg_catalog | pg_enum | table | postgres
pg_catalog | pg_event_trigger | table | postgres
pg_catalog | pg_extension | table | postgres
pg_catalog | pg_foreign_data_wrapper | table | postgres
pg_catalog | pg_foreign_server | table | postgres
pg_catalog | pg_foreign_table | table | postgres
pg_catalog | pg_index | table | postgres
pg_catalog | pg_inherits | table | postgres
pg_catalog | pg_init_privs | table | postgres
pg_catalog | pg_language | table | postgres
pg_catalog | pg_largeobject | table | postgres
pg_catalog | pg_largeobject_metadata | table | postgres
pg_catalog | pg_namespace | table | postgres
pg_catalog | pg_opclass | table | postgres
pg_catalog | pg_operator | table | postgres
pg_catalog | pg_opfamily | table | postgres
pg_catalog | pg_partitioned_table | table | postgres
pg_catalog | pg_pltemplate | table | postgres
pg_catalog | pg_policy | table | postgres
pg_catalog | pg_proc | table | postgres
pg_catalog | pg_publication | table | postgres
pg_catalog | pg_publication_rel | table | postgres
pg_catalog | pg_range | table | postgres
pg_catalog | pg_replication_origin | table | postgres
pg_catalog | pg_rewrite | table | postgres
pg_catalog | pg_seclabel | table | postgres
pg_catalog | pg_sequence | table | postgres
pg_catalog | pg_shdepend | table | postgres
pg_catalog | pg_shdescription | table | postgres
pg_catalog | pg_shseclabel | table | postgres
pg_catalog | pg_statistic | table | postgres
pg_catalog | pg_statistic_ext | table | postgres
pg_catalog | pg_statistic_ext_data | table | postgres
pg_catalog | pg_subscription | table | postgres
pg_catalog | pg_subscription_rel | table | postgres
pg_catalog | pg_tablespace | table | postgres
pg_catalog | pg_transform | table | postgres
pg_catalog | pg_trigger | table | postgres
pg_catalog | pg_ts_config | table | postgres
pg_catalog | pg_ts_config_map | table | postgres
pg_catalog | pg_ts_dict | table | postgres
pg_catalog | pg_ts_parser | table | postgres
pg_catalog | pg_ts_template | table | postgres
pg_catalog | pg_type | table | postgres
pg_catalog | pg_user_mapping | table | postgres
我还检查了模式是否公开-
List of schemas
Name | Owner | Access privileges | Description
--------+----------+----------------------+------------------------
public | postgres | postgres=UC/postgres+| standard public schema
| | =UC/postgres |
(1 row)
如果有帮助，我也在此处包括用户-
Role name | Attributes | Member of
-----------+------------------------------------------------------------+-----------
arif | Superuser,Create role,Create DB | {}
postgres | Superuser,Create DB,Replication,Bypass RLS | {}
我还检查了数据库-
scrape-# \l
List of databases
Name | Owner | Encoding | Collate | Ctype | Access privileges
-----------+----------+----------+-------------+-------------+-----------------------
arif | arif | UTF8 | en_US.UTF-8 | en_US.UTF-8 |
postgres | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8 |
scrape | arif | UTF8 | en_US.UTF-8 | en_US.UTF-8 |
template0 | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
template1 | postgres | UTF8 | en_US.UTF-8 | en_US.UTF-8 | =c/postgres +
| | | | | postgres=CTc/postgres
(5 rows)
解决方法
您对psql中的分号感到困惑。在一开始的每个人都会发生这种情况。
仅当psql收到终止该语句的分号时，该语句才发送到服务器。否则，您得到的只是提示稍有变化的提示，指示psql正在等待续行。
因此，如果您输入
CREATE TABLE mytab (x integer)
没有分号，什么都没发生。
然后您意识到忘记了分号，然后输入
CREATE TABLE mytab (x integer);
现在psql会将这两行视为一条语句并将其发送到服务器，这将导致您看到错误消息。
如有疑问，可以随时按 Ctrl + C 清除状态并丢弃语句缓冲区。
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