MERGE INTO tb_st_shxxcount tt USING ( SELECT DISTINCT sd.CODE, COUNT (ts.LRDW) count1, TO_CHAR (ts.LRSJ, 'yyyy-MM-DD') YFDATE FROM TB_RY_BSINFO ts, SYS_DICTITEM sd WHERE sd.CODE = ts.LRDW(+) AND sd.groupid = 'CODE_UNIT' AND ts.lrsj IS NOT NULL GROUP
这个月太忙,最近不太太平,我的愿望是世界和平! ================================== 今天也在找python的预编译,早上写的sql是拼接来构成的.于是找了2篇文章,还不错,分享一下大家学习. ps:直接引用别人的话了,因为他们说的已经很好了. 错误用法: sql = "select id,type,name from xl_bugs where id = %s and type = %s" % (id, type) cur.execute(sql) 这
mysql: select * from test where school_name like concat('%',${name},'%') oracle: select * from test where school_name like '%'||${name},'%' SQL Server:select * from test where school_name like '%'+${name},+'%'
SQL注入(SQL Injection) 所谓SQL注入式攻击,就是攻击者把SQL命令插入到Web表单的输入域或页面请求的查询字符串,欺骗服务器执行恶意的SQL命令.攻击者通过web请求提交带有影响正常SQL执行的参数(arlen’ OR ‘1’=’1),服务端在执行SQL时参数的特殊性影响了原本的意思(select * from table where user=’arlen\’ OR \’1\’=\’1’;),执行了非预期的操作(select * from table where user=