CREATE TABLE as SELECT * FROM and insert to select from two table copy statement differences[SQL]View PlainCopy
Create table targer_table as select * from source_table
INSERT INTO target_table (column1,column2) select Column1,column2
Temporary tables: Like normal tables, there is a structure, but the management of the data is not the same, the temporary table stores the transaction or the intermediate result set of the session, the data saved in the temporary table is only
We often encounter situations that require table duplication, such as copying part of a table1 data into table2, or copying the entire table1 to table2, when we are going to use SELECT into and the INSERT into SELECT table copies the statement.
In Oracle, select intoFrom can not be used, with createTableSelect to replace this function!!! It works correctly in SQL Server. 1.INSERT intoThe SELECT statement statement is in the form:Insert intoTable2 (Field1,field2,...)SelectValue1,value2,...
Over the past decade, Oracle has become one of the most professional databases in the world. For IT professionals, it is important to ensure that Oracle's powerful features are used to improve the productivity of their companies. One of the most
To use Oracle 9i in your work, you often insert the date and time that the event occurred to one of the tables. Write a note specifically on Oracle's date and time display and how it is inserted.
Like the built-in data types such as NUMBER,VARCHAR2,
In the past decade, Oracle has become one of the world's most professional databases. For IT experts, it is to ensure that their company's productivity is improved by leveraging the powerful features of oracle. One of the most effective methods is
We often encounter situations that require table duplication, such as copying a partial field of a Table1 data into table2, or copying the entire table1 to table2, when we are going to use the SELECT INTO and INSERT into select tables to copy the
A little familiar with Oracle knows that if we want an SQL statement to insert multiple values into a table, if insert into a table values (each value), values (values),.....; This will cause an error because Oracle does not support this notation if
Oracle uses a single cursor to insert data. For example, oracle cursor
Original works, from "Deep Blue blog" blog, deep blue blog: http://blog.csdn.net/huangyanlong/article/details/47143731Background
Recently, some friends asked me how to insert
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
and provide relevant evidence. A staff member will contact you within 5 working days.