Now rename table “dev” which is into myschema from public schema. postgres=# ALTER TABLE myschema.dev RENAME TO prod; ALTER TABLE postgres=# select * from pg_tables where schemaname='myschema'; schemaname | t
gpssh -f ~/seg_hosts "echo 'parameter=value'|cat ->>/gpdata/p*/*/postgresql.conf" 9.收集统计信息,回收空间 定期使用Vacuum analyze tablename 回收垃圾和收集统计信息,尤其在大数据量删除,导入以后,非常重要 评:这个说的不全面,vacuum分两种,一种是analize,优化查询计划的,还有一种是清理垃圾数据,postre...
PostgreSQL removes the teacher table as well as the constraint in the subject table. Note:drop cascades to constraint subject_teacher_id_fkey on table subject. How to Rename a Table in PostgreSQL? Syntax: ALTER TABLE table_name RENAME TO new_table_name; Explanation:Define the table name to b...
Alternatively, you can rename a column in pgAdmin by right clicking on the column you want to rename and select 'Properties' in the context menu. This will open a popup where you can edit the column name, as shown below. Click on the Save button to save the changes. ...
In this example the method would return this_is_a_really_long_table_name_for_all_banana_plants_on__pkey as the index name. Using this we can rename the index in rails/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb Line 387 in 0564e9b execute "ALTER ...
RENAMEtable_nameTOnew_name;Code language:SQL (Structured Query Language)(sql) In theRENAMEtable statement: First, specify the name of the existing table which you want to rename. Second, provide the new table name. The new name must not be the same as another table in the same schema. ...
Refactoring allows you to rename a column, a table and a schema using the ALTER command. This feature is available in dbForge Studio for MySQL.
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oldTableNameExisting name of the table to renameallall schemaName Name of the schema all Examples SQL example YAML example JSON example XML example SQL example --liquibase formatted sql--changeset liquibase-docs:renameTable-exampleALTERTABLEcat.personRENAMETOcat.employee; ...