1.添加主键索引 ALTER TABLEtable_nameADD PRIMARY KEY (column) ,Algorithm=Inplace ; 2.添加唯一索引 ALTER TABLEtable_nameADD UNIQUE (column) ,Algorithm=Inplace ; 3.添加全文索引 ALTER TABLEtable_nameADD FULLTEXT (column),Algorithm=Inplace ; 4.添加普通索引 ALTER TABLEtable_nameADD KEYtable_cloum...
alter table 表名 alter modify_reason drop not null; #将表的sp_id字段修改为VARCHAR alter table 表名 alter column sp_id type VARCHAR(128) using sp_id::VARCHAR; #清空表数据 truncate table 表名; #修改表字段的名称 ALTER TABLE 表名 RENAME settle_type to fee_settle_type; #清除自增id alter...
have the default level of optimizer statistics. If you have used ALTER TABLE to modify the statistics target for any tables, you might want to remove them and restore them after running this script because they will delay fast statistics generation. If you would like default statistics as quickl...
添加列:alter table tbl_user add age number(3) default 18 not null; alter table tbl_user add age number(3) default 18 not null after sex;(在指定列后添加列) 删除列:alter table tbl_user drop column age; 修改列:alter table tbl_user modify password default'000000' not null;(修改约束) ...
ALTER TABLE prm_letter_merge MODIFY COLUMN url varchar(900); ALTER TABLE prm_letter_merge alter COLUMN url type character varying(1000); --删除字段 ALTER TABLE prm_letter_merge DROP COLUMN url1; ALTER TABLE prm_letter_merge DROP COLUMN url2; --创建索引 Create Index bill_id_prm_prom_bill...
postgresql利用pg_upgrade升级数据库（从8.4升级到9.5）postgresql利⽤pg_upgrade升级数据库（从8.4升级到9.5）本⽂利⽤pg_upgrade实现将8.4.18版本升级到9.5.0版本，8.4.18版本为RedHat系统⾃带pg数据库版本。环境：Red Hat Enterprise Linux Server release 6.5 (Santiago) X86-64 查看⼿册看到...
Notice that there are two standard system databases: template0 and template1 databases. When we are CREATE DATABASE, we simply copy everything from the database template1. Then we can modify this template database in any way: add table, insert data, create new extensions, install procedural ...
If you have used ALTER TABLE to modify the statistics targetfor any tables, you might want to remove them and restore them after running this script because they will delay fast statistics generation. If you would like default statistics as quickly as possible, cancel ...
Modify insert policy to check for UUID in the first path segment(Postgres arrays are 1-based). create policy"Authenticated users can upload files"onstorage.objectsfor insert to authenticated withcheck( bucket_id='files'andowner=auth.uid()andprivate.uuid_or_null(path_tokens[1])is not null);...
If you want to dig deeper into the kettle job, you can use kettle_report.pl to display the individual table's transfer performance (you'll need to redirect kitchen's output to a file). Then, if needed, you'll be able to modify the Kettle job to optimize it, using Spoon, Kettle's...