CREATE DATABASE DATA_NAME drop database database_name create table person ( lastname varchar, firstname varchar, address varchar, age int ) alter tale table_name add column_name data_type alter table table_name ddrop column_name datatype drop table table_name create index person_index on pe...
| ascii() | ASCII 码转换`1' andascii(substr(database(),1,1))=115`| | ORD() | ASCII 码转换 1' and ord(substr(database(),1,1))=115 | | updatexml() | 报错注入常用`updatexml(1,concat(0x7e,(selectdatabase()),0x7e),1)`| | extractvalue() | 报错注入常用`extractvalue(1,concat...
5. Database Object Creation & Modification CREATE can be used to create new databases, tables, or views. A table is a permanent database object and contains data. A view is virtualized table and its contents are defined by a query, it does not actually store data, but it may bring toge...
1、测试工具:mysqlslap,mysqlslap是MySQL 5.1.4之后自带的benchmark基准测试工具,该工具可以模拟多个客户端同时并发的向服务器发出查询更新。 使用方法,https://my.oschina.net/moooofly/blog/152547。 2、测试流程:建立测试数据库database和待测试的表tables,根据table的结构,利用脚本生成一定数量的有效随机数据,通过...
This post is part of a series of SQL Injection Cheat Sheets. In this series, I’ve endevoured to tabulate the data to make it easier to read and to use the same table for for each database backend. This helps to highlight any features which are lacking for each database, and enumera...
With this SQL cheat sheet, you'll have a handy reference guide to basic querying tables, filtering data, and aggregating data Richie Cotton 5 min Blogs Cheat Sheets Code-Alongs Tutorials Ready to apply your skills? Projects allow you to apply your knowledge to a wide range of datasets ...
For set-based problems - SQL is much faster processor-wise and IO wise too because all the underlining looping iteration is delegated to a database server process that does it in a very low level way and uses IO/processor more efficiently and knows the current state of the data - e.g....
THE CHEAT SHEET A CHECKLIST AND SAMPLE TIMELINE FOR ORGANZING… 热度: 页数:6 E2AF Cheat Sheet 热度: 页数:21 SQL and PL_SQL 热度: 页数:238 sql时间(SQL time) 热度: 页数:8 jQuery视觉手册《jQuery Visual Cheat Sheet 》 热度: 页数:6 ...
TABLE_CATALOG TABLE_SCHEMA TABLE_NAME TABLE_TYPE===MyDatabase dbo Products BASE TABLEMyDatabase dbo Users BASE TABLEMyDatabase dbo Feedback BASE TABLE 此输出表明存在三个表,分别称为“产品”,“用户”和“反馈”。 然后,您可以查询information_schema.columns以列出各个表中的列: SELECT * FROM ...
PostgreSQL Cheat SheetPostgreSQL (psql) commands in one page for the SQL REPL from postgresql.org.BasicsNameDescription psql Connect to the database. psql -d <db> -U <user> Connect to localhost db as user name. psql create database <db> Create database with db name. create role <pg_us...