'||E'\n';ELSEv_table_ddl :=v_table_ddl||' '--note:two char spacer to start, to indent the column||'CONSTRAINT'||' '||'"'||v_constraint_record.constraint_name||'" '||v_constraint_record.constraint_definition||','||E'\n';ENDIF;END...
在弹出的"Preference Set"界面中,对"Personal Preferences" 以及下面的"Definition"->"Description"进行一下设置. 19. 在窗口标题栏内显示文件的完全路径 Tools->Preferences->User Interface->Options 勾选"Show complete file path in windows titles" 20. Object Brower中自定义Object的顺序以及登录后默认自动选中My...
-- 查看指定表对象testtable的模式postgres=#SELECTrelname,relnamespace,nspnameFROMpg_class c,pg_namespace nWHERErelname='testtable'ANDrelnamespace=n.oid;*relname|relnamespace|nspname---+---+---testtable|2200|public (1row)-- 查看指定表对象testtable的owner(即role)。postgres=#selectrelname,rol...
[ ONLY ] table_name [ * ] [ [ AS ] alias [ ( column_alias [, ...] ) ] ] ( select ) [ AS ] alias [ ( column_alias [, ...] ) ] function_name ( [ argument [, ...] ] ) [ AS ] alias [ ( column_alias [, ...] | column_definition [, ...] ) ] function_name...
[ ONLY ] table_name [ * ] [ [ AS ] alias [ ( column_alias [, ...] ) ] ] 更多关于大数据 PostgreSQL 系列的学习文章,请参阅:PostgreSQL 数据库,本系列持续更新中。 SQL 语句[2] 一个SQL 语句通常包含了关键字、标识符(字段)、常量、特殊符号等,下面是一个简单的 SQL 语句: ...
DefinitionStages.WithProperties DatasetResource.Update DatasetResource.UpdateStages DatasetResource.UpdateStages.WithIfMatch DatasetResource.UpdateStages.WithProperties DatasetSchemaDataElement DatasetStorageFormat Datasets DataworldLinkedService DayOfWeek DaysOfWeek Db2AuthenticationType Db2LinkedService Db2Source Db2Table...
multi_line_mode = psql # Destructive warning mode will alert you before executing a sql statement # that may cause harm to the database such as "drop table", "drop database", # "shutdown", "delete", or "update". # Possible values: # "all" - warn on data definition statements, ...
在表中增添一列:ALTER TABLE 表名 ADD 列名 数据类型; 往表中插入数据:insert into 表名(key1,key2,……) values (value1,value2,……); 如果向表中的所有字段插入值,则可以不需要指定字段(key1,key2,……) 插入多行: 查看表内容:select * from 表名; ...
file) with external editor \ef [FUNCNAME [LINE]] edit function definition with external editor...Informational (options: S = show system objects, + = additional detail) \d[S+] list tables, views, and sequences \d[S+] NAME describe table, view, sequence, or index \da...
– 视图触发器返回空测试 – 创建基表 digoal=> create table tbl (id int, info text, crt_time timestamp); CREATE TABLE – 创建视图 digoal=> create view v_tbl as select * from tbl; CREATE VIEW – 创建触发器函数 digoal=> create or replace function tg() returns trigger as ...