SUBSTR (SYS_CONNECT_BY_PATH (column_name, ','), 2) column_name_list FROM (SELECT index_owner, index_name, table_owner, table_name, column_name, COUNT (1) OVER (PARTITION BY index_owner, index_name) cnt, ROW_NUMBER () OVER (PARTITION BY index_owner, index_name ORDER BY column_po...
rhel7.x86_64 -- 环境变量 echo "export PATH=/usr/pgsql-14/bin:$PATH" >> /etc/profile -- 初始化PG /usr/pgsql-14/bin/postgresql-14-setup initdb systemctl enable postgresql-14 systemctl start postgresql-14 systemctl status postgresql-14 -- 本地登陆 su - postgres psql -- 安装插件 ...
select level dep,CONNECT_BY_ISLEAF LEAF_FLAG,SYS_CONNECT_BY_PATH(depname, ' - ') name_path from DEP_tcl start with upperdepid is null connect by nocycle prior depid=upperdepid level对应第几层;CONNECT_BY_ISLEAF是否是叶子;connect_by_root显示根目录;SYS_CONNECT_BY_PATH 把层级关系按1路径显...
project_path=os.path.abspath("..")sys.path.append(project_path)os.environ["DJANGO_SETTINGS_MODULE"]="db_ops_platform.settings"importdjango django.setup()fromdb_ops_platformimportconfigs@func_set_timeout(60)defget_top_seq_usage():1、从平台接口,获取到需要执行巡检的pg的信息(地址、端口等)# r...
当PostgreSQL的后台服务进程postgres接收到客户端的查询语句后,首先将其传递到查询分析模块,进行词法、语法和语义分析。对于建表、创建用户、备份等将其分配到功能性命令处理模块;对于SELECT、INSERT、DELETE、UPDATE则将其构建查询树,然后交给查询重写模块。重写重写模块收到查询树后,按照该查询所涉及的规则和视图对...
"$user", public重置set search_path to '$user',sa,public;默认所有用户都有public的usage和create权限,如果需要使用其他schema,需要赋予usage权限。每个数据库都包含一个系统schema pg_catalog,包含系统表和内建对象,如果不指定schema,会先于schema搜索路径查找。
就会导致的pg最终没有类似pg_stat_statements的扩展功能394041-- 配置环境变量42cat >> ~/.bash_profile <<"EOF"43exportPGPORT=543244exportPGDATA=/postgresql/pgdata45exportPGHOME=/postgresql/pg1446exportLD_LIBRARY_PATH=$PGHOME/lib:$LD_LIBRARY_PATH47exportPATH=$PGHOME/bin:$PATH:.48exportPGHOST=$...
1create database link to_pglink connect to "postgres" identified by "lhr" using 'PG_LINK'; 2 3 4-- 访问postgre的数据库表是需要表名字小写并加上双引号 5select * from "test"@to_pglink; 6select * from "public"."test"@to_pglink; 7 8SYS@LHR11G> select * from "test"@to_pglink;...
export PATH=$PATH:/usr/local/pgsql/bin EOF 注意:psql和gsql的lib库不兼容,参考:https://www.xmmup.com/guzhangchulipsqlkehuduanlianjiepgbaocuopsql-error-expected-authentication-request-from-serv.html 源码安装(生产库建议源码安装) https://www.postgresql.org/ftp/source/ ...
PGresult *res;char*sysidentifier; TimeLineID latesttli; TimeLineID starttli;char*basebkp;charescaped_label[MAXPGPATH];char*maxrate_clause =NULL;inti;charxlogstart[64];charxlogend[64];intminServerMajor, maxServerMajor;intserverVersion, serverMajor;//数据库连接Assert(conn !=NULL);/* ...