postgres=# \d+ example_tbl Table "public.example_tbl"Column | Type | Collation | Nullable | Default | Storage | Compression | Stats target | Description---+---+---+---+---+---+---+---+---id | integer | | not null | | plain | ...
''',''')||''';'||E'\n';ENDIF;-- comment on columnFORv_column_comment_recordINSELECTcol.column_name, d.descriptionFROMinformation_schema.columns colJOINpg_catalog.pg_class cONc.relname=col.table_nameJOINpg_catalog.pg_namespace nsp
Postgres supports another handy command that can be executed from any interface like psql or pgAdmin. Use the SELECT command with the “information_schema” to get the table’s structure: SELECT*FROMinformation_schema.columnsWHEREtable_schema ='public'ANDtable_name ='emp_bio'; In this example, ...
CREATETABLEpg_log(log_timetimestamp(3)withtime zone,user_name text,database_name text,process_id integer,connection_from text,session_id text,session_line_num bigint,command_tag text,session_start_time timestampwithtime zone,virtual_transaction_id text,transaction_id bigint,error_severity text,...
查看表结构,相当于desc tblname,show columns from tbname\d tblname\di 查看索引 创建数据库:create database [数据库名];删除数据库:drop database [数据库名];重命名一个表:alter table [表名A] rename to [表名B];删除一个表:drop table [表名];在已有的表里添加字段:alter table [表名] add ...
打开[工具]->[显示属性](英文:Display Preferences) ->Content->Table->右边面板Columns框中 勾选: StereoType ,这样再在 StereoType中填入code字段相同内容就会显示在图形界面上了 使用说明: 在【Tools】-【Execute Commands】-【Edit/Run Script】 下。输入下面你要选择的语句即可,也可以保存起来,以便下次使用,后...
: string | null;}const users = { tableName: 'users', columns: ['id', 'first_name', 'last_name', 'email', 'country'], requiredForInsert: ['first_name', 'last_name', 'email'], primaryKey: 'id', foreignKeys: {}, $type: null as unknown as Users, $input: null as...
定义一个存储过程如下: create proc [dbo]...[test1] @id int as select 1 as id,'abc' as name union all select @id as id,'zzz' as name 返回两行数据...现在想用SQL语句来调用这个存储过程,并把他返回的表放入变量中.可以如下做: declare @table table(id int,name varchar(50))--定义表变量...
《PostgreSQL 17 preview - JSON_TABLE: Add support for NESTED paths and columns》 vacuum性能改进: 《PostgreSQL 17 preview - 增加index vacuum 进度打印》 《PostgreSQL 17 preview - Optimize vacuuming of relations with no indexes 降低wal产出》
they were actual data columns; in particular, starelid references the index. No entry is made for an ordinary non-expression index column, however, since it would be redundant with the entry for the underlying table column. Currently, entries for index expressions always have stainherit = false...