CREATE TABLE IF NOT EXISTS TempA (id int); CREATE TABLE IF NOT EXISTS TempB (id int); For some reason the above statements are giving me syntax errors? I want to create table only if it does not already exist. Also, can the same "if not exists" clause be applied to "DROP TABLE"...
The CREATE TABLE IF NOT EXISTS command in PostgreSQL is used to create a new table only if it does not already exist in the database. This feature prevents errors that would otherwise occur if you attempt to create a table that already exists. This is especially useful in automated scripts ...
create table tblNewTable(custID int(10)); end if I have a syntax errors on 'IF' and on 'END IF' that says 'unexpected if' and 'unexpected end' Please someone help me, Regards Subject Written By Posted create table if not exist ...
In order to create a new table within a database, you use the MySQLCREATE TABLEstatement. TheCREATE TABLEstatement is one of the most complex statement in MySQL. The following illustrates the syntax of theCREATE TABLEstatement in the simple form: CREATE TABLE [IF NOT EXISTS] table_name( col...
关于表的克隆有多种方式，比如我们可以使用create table ..as .. ，也可以使用create table .. like...
create table语句是在数据库中创建表。在MySQL实例中可以 通过? create table方式来查看其语法: Syntax:CREATE[TEMPORARY]TABLE[IFNOTEXISTS] tbl_name (create_definition,...) [table_options] [partition_options]CREATE[TEMPORARY]TABLE[IFNOTEXISTS] tbl_name ...
MySQL中create table语句的基本语法是: CREATE[TEMPORARY]TABLE[IF NOT EXISTS]tbl_name [(create_definition,...)] [table_options] [select_statement] TEMPORARY:该关键字表示用MySQL create table新建的表为临时表,此表在当前会话结束后将自动消失。临时表主要被应用于存储过程中,对于目前尚不支持存储过程的MySQL...
(0.04 sec) mysql> --error ER_NON_INSERTABLE_TABLE -> INSERT INTO t1 VALUES (1); ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '--error ER_NON_INSERTABLE_TABLE INSERT INTO ...
Bug #12224 Strange results with 'create/drop table if (not) exists' Submitted: 27 Jul 2005 20:48Modified: 16 Aug 2005 16:36 Reporter: Markus Popp Email Updates: Status: Closed Impact on me: None Category: MySQL ServerSeverity: S2 (Serious) Version: 5.0.7-beta, 5.0.9-beta, 5.0....
http://blog.sina.com.cn/s/blog_5d2eee260100xu8b.html Every derived table must have its own alias 这句话的意思是说每个派生出来的表都必须有一个自己的别名...一般在多表查询时,会出现此错误。...因为,进行嵌套查询的时候...