cast((sum(table_size) / database_size) * 100 as DECIMAL(18,2)) as percentage FROM ( SELECT pg_catalog.pg_namespace.nspname as schema_name,pg_relation_size(pg_catalog.pg_class.oid) as table_size, sum(pg_relation_size(pg_catalog.pg_class.oid)) over () as database_size FROM pg_...
select current_database(),buk this_buk_no,cnt rels_in_this_buk,pg_size_pretty(min) buk_min,pg_size_pretty(max) buk_max from( select row_number() over (partition by buk order by tsize),tsize,buk,min(tsize) over (partition by buk),max(tsize) over (partition by buk),count(*) ...
pg_database_size(oid) bigint 指定OID代表的数据库使用的磁盘空间 pg_database_size(name) bigint 指定名称的数据库使用的磁盘空间 pg_relation_size(oid) bigint 指定OID代表的表或者索引所使用的磁盘空间 pg_relation_size(text) bigint 指定名称的表或者索引使用的磁盘空间。这个名字可以用...
PostgreSQLis a database system capable of object-relational handling; it is free of charge and open source. PostgreSQL has earned a reputation for its solid architecture, interoperability with other applications through SQL standards adherence, high degree of usefulness regarding data integrity, and ric...
當命令完成時,尋找具有Ran Database Query:的輸出行。 它們會顯示為您建立的資料庫使用者,以及使用者名稱和root密碼Sampledb1。 您稍後會使用它們將應用程式連線到資料庫。 提示 --location <location-name>,可以設定為任一 Azure區域。 您可以使用 命令取得訂用az account list-locations帳戶可用的區域。 針對生產...
Moreover, it "locked" big_and_loaded_table: any query in my application that involved it -- both read and write -- took oh so long to execute, the same minute or so. I don't use transactions in my application at all, as well as any kind of explicit locks. So I have two ...
az postgres flexible-server execute\--name$DB_SERVER_NAME\--admin-user$ADMIN_USER\--admin-password$ADMIN_PW\--database-namepostgres \--querytext'create database restaurant;' 将代码部署到 Azure 应用服务 在本部分中,你将在应用服务应用中创建应用主机,将此应用连接到 Postgres 数据库,然后将代码部署...
PostgreSQL 17 brings a wealth of improvements aimed at enhancing query performance, making it a significant upgrade for database administrators and developers. This release focuses on several key areas to boost efficiency and performance. In this blog, you will cover the following query-related enhanc...
1. I suspect for bloating as the database size is huge around 220GB, I ran the table bloat query with following output: (trying to learn and understand about the output parameters) 2. Also the counters are never reset so the huge numbers too. Can I reset the counters...
Performance: You can query a single table instead of finding the value from a lookup table. Simplicity: Generally the SQL is easier to read and write. There are also some disadvantages to using Enums: Limited Flexibility: Adding and removing values requires modifying the database schema (i.e...