CREATETABLEnew_tblASSELECT*FROMorig_tbl; IGNORE | REPLACE 这两个选项表明,当根据select语句创建表时,该如何处理复制唯一键值的行。(how to handle rows that duplicate unique key values when copying a table using a SELECT statement.) 0.4 Column Data Types and Attributes 这些就是表的字段定义了。字段...
For more information, see The Effect of IGNORE on Statement Execution. You can also use a VALUES statement in the SELECT part of CREATE TABLE ... SELECT; the VALUES portion of the statement must include a table alias using an AS clause. To name the columns coming from VALUES, supply ...
The SQL statement “create table <table_name> as select …” is used to create a normal or temporary table and materialize the result of the select. Some applications use this construct to create a copy of the table. This is one statement that will do all the work, so you do not need...
Postgres allows us to create a table via the SELECT command; for this purpose, the CREATE TABLE statement is used along with an AS clause followed by a SELECT statement. The newly created table will have the same table structure (e.g., column names, data types, etc.) as the columns in...
With AWS DMS, you can create a new table in a target database by selecting data from one or more tables in a source database using the Oracle and PostgreSQL CREATE TABLE AS SELECT statement. This statement defines a new table by querying data from existi
With AWS DMS, you can create a new table in a target database by selecting data from one or more tables in a source database using the Oracle and MySQL CREATE TABLE AS SELECT statement. This statement defines a new table by querying data from existing ta
SQL语句“create table <table_name> as select ...”用于创建普通表或临时表,并物化select的结果。某些应用程序使用这种结构来创建表的副本。一条语句完成所有工作,因此您无需创建表结构或使用其他语句来复制结构。 At the same time there are a number of problems with this statement: ...
If the destination table exists andIF NOT EXISTSis given, MySQL 8.4 ignores the statement completely; nothing is inserted or logged. MySQL 8.4 does not allow aCREATE TABLE ... SELECTstatement to make any changes in tables other than the table that is created by the statement. ...
这是因为在5.6及以上的版本内,开启了 enforce_gtid_consistency=true 功能导致的,MySQL官方解释说当启用 enforce_gtid_consistency 功能的时候,MySQL只允许能够保障事务安全,并且能够被日志记录的SQL语句被执行,像create table … select ...
Using the SELECT option of the SQL statement CREATE TABLE, create a table named ITEMCOPY which is a copy of the table ITEM. ___ 相关知识点: 试题来源: 解析 CREATE TABLE itemcopy AS SELECT * FROM item; 反馈 收藏