解决方案是如下图这样,把allow MultiQueries改成true就可以了!
为了与数据库管理系统交互,数据库软件包需要适当的驱动程序。 目前,database/sql 支持超过 50 种数据库驱动程序,涵盖SQLite、MySQL/MariaDB、PostgreSQL、Oracle 和 MS SQL Server 等最流行的 DBMS。 此软件包还支持基本的 CRUD 操作、数据库事务、命名形参、返回多个结果集、可取消查询、SQL 类型支持、连接池管理、...
Considering the database above, use SQL language to write the following queries. Solution Q1. Find the department names of all instructors 代码语言:javascript 代码运行次数:0 运行 AI代码解释 select distinct dept_name from instructor; Q2. Find the names of all instructors in the Computer Science ...
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由DBMS来进行解释 嵌入式SQL 能将SQL语句嵌入到高级语言(宿主语言) 使应用程序充分利用SQL访问数据库的能力、宿主语言的过程处理能力 一般需要预编译,将嵌入的SQL语句转化为宿主语言编译器能处理的语句 SQL语言主要组成部分 数据定义语言(DDL,Data Definition Language) ...
simple SQL Queries (一) Basic SQL Query SQL有一个基本的statement来检索数据库中的information: theSELECTstatement ( 这和在relation algebra中所出现的SELECT (σ)operation是不一样的 ) the basic form of SQL: SELECT[DISTICNT]target-listFROMrelation-listWHEREqualification ...
Queries involving Joins SORT JOIN,MERGE JOIN,NESTED LOOPS CONNECT BY CONNECT BY 41. 用UNION-ALL 替换UNION ( 如果有可能的话) 当SQL语句需要UNION两个查询结果集合时,这两个结果集合会以UNION-ALL的方式被合并, 然后在输出最终结果前进行排序.
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 ...
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...