tabSchema.put("id", "integer"); tabSchema.put("name", "varchar"); tabSchema.put("age", "integer"); String tableName= "stu"; List<JSONArray> preRusult =newArrayList<>(); JSONArray dataSets=newJSONArray();for(inti = 0; i < 5000; i++) { JSONObject object=newJSONObject(); obj...
# assign@OverridepublicIntegervisitAssign(LibExprParser.AssignContextctx){// 获取idStringid=ctx.ID().getText();// // 获取valueintvalue=Integer.valueOf(visit(ctx.expr()));// 缓存ID数据data.put(id,value);// 打印日志System.out.println(id+"="+value);returnvalue;}// NEWLINE # blank@Overri...
SQL>showparameterspfile;NAMETYPEVALUE--- --- ---spfilestring/opt/oracle/dbs/spfileorcl.oraSQL>showparameteraudit_trail;NAMETYPEVALUE--- --- ---audit_trailstringDBSQL>altersystemsetaudit_trail=db,extendedscope=spfile;Systemaltered. 重启数据库 SQL>shutdownimmediate;Databaseclosed.Databasedismounted....
5 dbms_output.put_line(v_ename); 6 exception 7 when value_error then 8 dbms_output.put_line('variable datatype length is small'); 9 end; 10 / Enter value for eno: 7788 old 4: select ename into v_ename from emp where empno=&eno; new 4: select ename into v_ename from emp wher...
import requests import time url = 'http://192.168.2.244/index.aspx?user_id=' cookies = { # 如果目标网站要事先登录,就加上cookies吧 "PHPSESSID":"c8ab8r49nd2kk0qfhs0dcaktl3" } flag = '' for i in range(1,90000): low = 32 high = 128 mid = (low+high)//2 while(low<high): ...
(selected N rows)setechooff -- 是否显示脚本中正在执行的SQL语句 on 显示 off 不显示setserveroutput on -- 使用dbms_output.put_line时,是否在屏幕上显示信息 on 显示 off 不显示setfeedback off -- 是否显示当前sql语句查询或修改的行数 off 不显示查询或修改的行数settrimspool on -- 是否去除重定向(...
String script = DSLUtils.toScript(namedScript.getScript(), namedScript.getParams(), new PlaintextParamsParser() { @Override protected String convert(Object value) { if (value instanceof Date) { return parse((Date) value); } else if (value instanceof Calendar) { Date date = ((Calendar) ...
若您在DMS体验或使用PolarDB for AI功能时,执行AI SQL(即SQL语句前添加/*polar4ai*/的SQL)出现以下错误: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 'xxx' at line xxx,请检查DMS的连接地址是否为PolarDB集群...
该名称不能以$开头。includeArrayIndex: <string>,#可选,default :false,若为true,如果路径为空,缺少或为空数组,则 $unwind输出文档preserveNullAndEmptyArrays: <boolean>} } 姓名为xx006的作者的book的tag数组拆分为多个文档 db.books2.aggregate([{$match:{"author.name":"xx006"}},{$unwind:"$tag"}]...
(e.g. to dump the database contents to the attacker).SQL injection must exploit a security vulnerability in an application's software, for example, when user input is either incorrectly filtered for string literal escape characters embedded in SQL statements or user input is not strongly typed ...