如何重命名Oracle 10g中的表列
我想知道:如何重命名Oracle 10g中的表列?
SQL> create table a(id number); Table created. SQL> alter table a rename column id to new_id; Table altered. SQL> desc a Name Null? Type ----------------------------------------- -------- ----------- NEW_ID NUMBER
查询的语法如下所示:
Alter table <table name> rename column <column name> to <new column name>;
例:
Alter table employee rename column eName to empName;
要将不带空格的列名重命名为具有空格的列名:
Alter table employee rename column empName to "Emp Name";
要将具有空格的列重命名为无空格的列名称:
Alter table employee rename column "emp name" to empName;
alter table table_name rename column oldColumn to newColumn;
假设supply_master是一个表,并且
SQL>desc supply_master; SQL>Name SUPPLIER_NO SUPPLIER_NAME ADDRESS1 ADDRESS2 CITY STATE PINCODE SQL>alter table Supply_master rename column ADDRESS1 TO ADDR; Table altered SQL> desc Supply_master; Name ----------------------- SUPPLIER_NO SUPPLIER_NAME ADDR ///////////this has been renamed........////////////// ADDRESS2 CITY STATE PINCODE
alter table table_name rename column old_column_name / field_name to new_column_name / field_name;
例如:将表格学生列名改为用户名;