Re: Update one table with a select form another Peter Brawley July 28, 2021 03:36PM Sorry, you can't reply to this topic. It has been closed. Content reproduced on this site is the property of the respective copyright holders. It is not reviewed in advance by Oracle and does not nece...
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update student s set city_name = (select name from city where code = s.city_code); REF: http://dba.stackexchange.com/questions/119621/how-to-update-10-million-rows-in-mysql-single-table-as-fast-as-possible http://stackoverflow.com/questions/6393763/fast-cross-table-update-with-mysql http...
INSERT INTO table_name(column_list) SELECT select_list FROM another_table WHERE condition; INSERT ON DUPLICATE KEY UPDATE statement(插入更新数据)如果目标表里已经存在相同的主键,则执行下面的更新字段的SQLINSERT INTO table (column_list) VALUES (value_list) [SELECT ...FROM ... WHERE] ON DUPLICATE ...
alter table ALGORITHM [=] {DEFAULT | INSTANT | INPLACE | COPY} COPY: 这种操作是在原始表的一个副本上进行的,表数据会逐行从原始表复制到新表。在此过程中,不允许进行并发的数据修改操作。 INPLACE: 这种操作避免了复制表数据,但可能会就地重建表。在操作的准备和执行阶段,系统可能会短暂地对表进行独占的...
在上述示例中,update_another_table是触发器的名称,table1是要插入数据的表,table2是要更新数据的另一个表,column1是要更新的列,id是用于匹配两个表的关联字段。 插入数据: 代码语言:txt 复制 INSERT INTO table1 (column1, column2) VALUES ('value1', 'value2'); ...
ndb_select_allprints all rows from anNDBtable tostdout. Usage ndb_select_all-cconnection_stringtbl_name-ddb_name[>file_name] Options that can be used withndb_select_allare shown in the following table. Additional descriptions follow the table. ...
You can create one table from another by adding a SELECT statement at the end of the CREATE TABLE statement: CREATE TABLE new_tbl [AS] SELECT * FROM orig_tbl; MySQL creates new columns for all elements in the SELECT. For example: ...
mysql>selectremaining_delayfromperformance_schema.replication_applier_status;+---+|remaining_delay|+---+|NULL|+---+1rowinset(0.00sec) mysql>-- 主mysql>droptabletest.t3; Query OK,0rowsaffected (0.02sec) mysql>-- 从mysql>selectremaining...
This I want to use to update the tables that drive the website. This is what I've got so far: On the server where the website is hosted, create a temporary table: CREATE TABLE temp_catalogue LIKE catalogue; Then load the .csv data into it: LOAD DATA INFILE 'path/to/...