解决方案是如下图这样,把allow MultiQueries改成true就可以了!
Errors in SQL queries can be classified into syntactic errors and semantic errors. A syntactic error means that the entered character string is not valid SQL. Then any DBMS will print an error message because it cannot execute the query. Thus, the error is certainly detected and usually easy ...
Doc ID 2002089.1 High Latch Free Waits on 'Result Cache: RC Latch' In 12C Doc ID 2031605.1 Adaptive Query Optimization Doc ID 2002108.1 Dynamic Sampling Level Is Changed Automatically in 12C Doc ID 2033658.1 Dictionary Queries Running Slow in 12C PDBs Doc ID 2097793.1 [INTERNAL]Commonly Reported ...
= some 等价于 in、<> some 不等价于 not in 子查询——存在判断Exists Exists + 子查询用来判断该子查询是否返回元组 当子查询的结果集非空时,Exists为True 当子查询的结果集为空时,Exists为False 不关心子查询的具体内容,因此用 Select * 具有外部引用的子查询,称为相关子查询(Correlated Queries) 外层元组...
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首先是数据库管理系统，简称数据库，也就是DBMS，这是数据库的管理软件。市场上有很多选择，比如MySQL、...
[Microsoft Research 2000] Parameterized queries and nesting equivalences--SQL Server去相关子查询 本文为解决SQL关联子查询问题,提出了Apply算子,用于描述SQL子查询,并给出了Apply算子向join转换的恒等式,基于这些恒等式,可以实现SQL子查询去关联。Apply算子已经应用到SQL Server7.0。 [SIGMOD '01] Orthogonal Optimiza...
CREATE OR REPLACE PROCEDURE demo(salary IN NUMBER) AS cursor_name INTEGER; rows_processed INTEGER; BEGIN cursor_name := dbms_sql.open_cursor; DBMS_SQL.PARSE(cursor_name, 'DELETE FROM emp WHERE sal > :x', dbms_sql.native); DBMS_SQL.BIND_VARIABLE(cursor_name, ':x', salary); rows_...
In addition, individual report sections can also be enabled or disabled by using a±section_name. Several sections are defined: XPLAN: Shows explain plan.ONby default. PLAN: Shows plan monitoring statistics.ONby default. SESSIONS: Show session details. Applies only to parallel queries.ONby defaul...
a statement, a connection to a file that contains one or multiple statements, or the name of a variable that contains a statement. The SQL statements must be written in the dialect of the source database management system (DBMS). For more information, seeIntegration Services (SSIS) Queries....