postgres=# \help SELECT Command: SELECT Description: retrieve rows from a table or view Syntax: [ WITH [ RECURSIVE ] with_query [, ...] ] SELECT [ ALL | DISTINCT [ ON ( expression [, ...] ) ] ] [ * | expression [ [ AS ] output_name ] [, ...] ] [ FROM from_item [,...
postgres=#create temp view vw_users1asselectid,user_name,user_email,user_markfromusers; CREATE VIEW postgres=#insertintousers values(2,'b','123466','test1@163.com'); INSERT01 postgres=# 2、修改视图 通过SQL命令alter view来修改视图,支持常见的修改包括: 修改所有者:alter view ViewName owner t...
variables show help on special variables \h [NAME] help on syntax of SQL commands, * for all commandsQuery Buffer \e [FILE] [LINE] edit the query buffer (or file) with external editor \ef [FUNCNAME [LINE]] edit function definition with external editor...Informational (o...
postgres=# \helpSELECTCommand:SELECTDescription:retrieve rows from a table or viewSyntax:[WITH[RECURSIVE]with_query[,...]]SELECT[ALL|DISTINCT[ON(expression[,...])]][*|expression[[AS]output_name][,...]][FROMfrom_item[,...]][WHEREcondition][GROUPBYgrouping_element[,...]][HAVINGcondition[...
Description:replacethecontentsofamaterializedviewSyntax:REFRESHMATERIALIZEDVIEW[ CONCURRENTLY ]name[WITH[NO]DATA] 运行刷新很简单: demo=# REFRESH MATERIALIZED VIEW mat_view; REFRESH MATERIALIZED VIEW PostgreSQL 知道必须重新执行以刷新物化视图内容的查询。只有一个缺点:PostgreSQL 必须在刷新时锁定对象,这意味着在刷...
-C create -f 是导出后的文件名 5.postgresql 插入16进制数 INSERT INTO tableAAA VALUES( x'0001f' : : integer, '鉴权' , 'Authority' ) 6.使用 TG_RELNAME 报错ERROR: syntax error at or near "$1" at character [引]http://www.dbmonster.com/Uwe/Forum.aspx/postgresql/2051/TG-RELNAME-probl...
What are the syntax differences between PostgreSQL and SQL Server? Compare PostgreSQL vs. MSSQL Server Syntax 中文:数据库SQL的一些前缀的比较 What are the data type differences between PostgreSQL and SQL Server? Compare data types in PostgreSQL vs. MSSQL ...
\h[NAME]help on syntax of SQL commands,*forall commands Query Buffer \e[FILE][LINE]edit the query buffer(or file)with external editor \ef[FUNCNAME[LINE]]editfunctiondefinition with external editor...Informational(options:S=show system objects,+=additional detail)\d[S+]list tables,views,and...
postgres=# \help create table Command: CREATE TABLE Description: define a new table Syntax: CREATE [ [ GLOBAL | LOCAL ] { TEMPORARY | TEMP } | UNLOGGED ] TABLE [ IF NOT EXISTS ] table_name ( [ { column_name data_type [ STORAGE { PLAIN | EXTERNAL | EXTENDED | MAIN | DEFAULT } ...
school=# select * from schema_test.view_test ; a --- (0 rows) 二、模式修改 语法: school=# \h alter schema Command: ALTER SCHEMA Description: change the definition of a schema Syntax: ALTER SCHEMA name RENAME TO new_name ALTER SCHEMA name OWNER TO new_owner ...