20150609 Created By BaoXinjian

aaarticlea/png;base64,iVBORw0KGgoAAAANSUhEUgAAABQAAAATCAIAAAAf7rriAAABHklEQVQ4jc3Tv0sCcRjH8Wc4/wL9H4T0P3CpXYQcHQpuFIQayjvXQrnulhosHDpQsBZB8Q9wuWu1QVBcbMtNyaAm3y0e/fC4Lmvo4bO++D6fB74CLJdPm0X+MRaRn2HuowziDFNMVBFhajDvsHB4GYXBMQZxRikeVBHh0WDeDo+jKzz5gJ8dXjfAU4NZm4UbEse+4uC1qVYplSgU2Ntf4aHXeXrGLBjX65TLaEXyeTIZdrYjCskEIpLdRdMwTWybOxc/3GpxfsHpCUfH5HKk0xGF5JaHi1gm9jWuP3Ycbm+o1bAsDg9Q1U9YC8b9Pt0uzSZXl/LdrOHxmF6PTodGg0oFXY8oJLzOuveyf+f1vB8si17EDFj7zz5GyPwKvwECQrZ4yvBSdAAAAABJRU5ErkJggg==" alt="" />一、摘要


oracle logon trigger一般用来审计用户登录信息或者限制用户登录,虽说不常用,但仍不失为一种好办法。

1. 不能审计dba用户登录

2. 什么时候适合使用

It is advised you use this trigger only when

(1) not using archive logging on the database or

非归档模式

(2) there are few logons to the database.

登录次数少

aaarticlea/png;base64,iVBORw0KGgoAAAANSUhEUgAAABQAAAATCAIAAAAf7rriAAABHklEQVQ4jc3Tv0sCcRjH8Wc4/wL9H4T0P3CpXYQcHQpuFIQayjvXQrnulhosHDpQsBZB8Q9wuWu1QVBcbMtNyaAm3y0e/fC4Lmvo4bO++D6fB74CLJdPm0X+MRaRn2HuowziDFNMVBFhajDvsHB4GYXBMQZxRikeVBHh0WDeDo+jKzz5gJ8dXjfAU4NZm4UbEse+4uC1qVYplSgU2Ntf4aHXeXrGLBjX65TLaEXyeTIZdrYjCskEIpLdRdMwTWybOxc/3GpxfsHpCUfH5HKk0xGF5JaHi1gm9jWuP3Ycbm+o1bAsDg9Q1U9YC8b9Pt0uzSZXl/LdrOHxmF6PTodGg0oFXY8oJLzOuveyf+f1vB8si17EDFj7zz5GyPwKvwECQrZ4yvBSdAAAAABJRU5ErkJggg==" alt="" />二、锁定统计信息


Step1. 创建审计表

CREATE TABLE gavin.bxj_logonlog(
os_user varchar2(30),
user_name varchar2(30),
logon_time date,
session_user varchar2(30),
ip_address varchar2(15),
program varchar2(30)
);

Step2.  创建Logon Trigger

CREATE OR REPLACE TRIGGER gavin.bxj_on_logon
AFTER logon ON DATABASE
DECLARE
user_name varchar2(30);
os_user varchar2(30);
v_sid number;
v_su varchar2(15);
v_program varchar2(30);
v_ip varchar2(15);
BEGIN
EXECUTE IMMEDIATE 'select distinct sid from sys.v_$mystat'
INTO v_sid; EXECUTE IMMEDIATE 'select osuser, username, program from sys.v_$session where sid = :b1'
INTO os_user, user_name, v_program
USING v_sid; SELECT sys_context('userenv', 'SESSION_USER') INTO v_su from dual;
SELECT sys_context('userenv', 'IP_ADDRESS') INTO v_ip from dual; INSERT INTO gavin.bxj_logonlog
VALUES
(os_user, user_name, sysdate, v_su, v_ip, v_program); --禁止WWW账号登陆
IF (user_name = 'WWW') THEN
DBMS_SESSION.SET_IDENTIFIER('about to raise app_error..');
RAISE_APPLICATION_ERROR(-20003, 'You are not allowed to connect to the database');
END IF; --启用GAVINTEST账号的所有操作的trace记录
IF user = 'GAVINTEST' THEN
EXECUTE IMMEDIATE 'alter session set statistics_level=ALL';
EXECUTE IMMEDIATE 'alter session set max_dump_file_size=UNLIMITED';
EXECUTE IMMEDIATE 'alter session set tracefile_identifier='''||user||'_10046''';
EXECUTE IMMEDIATE 'alter session set events ''10046 trace name context forever, level 12''';
END IF;
END;
/

Step3. 使用普通账号登陆,用以测试查看BXJ_LOGONLOG审计表记录

Step4. 使用WWW账号登陆,用以测试是否允许登录

Step5. 使用GAVINTEST账号登陆,用以而是是否产生trace file

Thanks and Regards

参考:Matelink - How To Create A Trigger To Capture User Information On Logon [ID 454088.1]

aaarticlea/png;base64,iVBORw0KGgoAAAANSUhEUgAAAfgAAACWCAIAAAC9ww22AAAgAElEQVR4nO2d91cbWdrn+Rv2nN0ft8/Z0/ue3X33nHfffXfOzPDOO++Enp7x654ed3B3T0dHHLAxOQgQOYgoEEkSEso5AMZyABmDiSYHEUwOitjgdsAman9QqipVKYAckJ/PuT9AhVu3rm5971PPfe6tkMaFVUiQIEGCFMQp5K2XABIkSJAgvdYEQg8JEiRIQZ5cQm8FAAAAgggQegAAgCAHhB4AACDIAaEHAAAIckDoAQAAghwQegAAgCAHhB4AACDIAaEHAAAIckDoAQAAghwQegAAgCAHhB4AACDIAaEHAAAIckDoAQAAghwQegAAgCAHhB4AACDIAaEHAAAIckDoAQAAghwQegAAgCAHhB4AACDICZjQm3fl5l25cU9u3JMbd5XGXaVxV23cVRv2bElp2FPq9+WutC037MqMe3LTvty0LzfuyQ3bjYbtG8YtrXGr1bilNe00m3abTPsK477AuM/XbwkMW2LTrtiyL12zypzJvCex7EvX9pVr+0rLnsq8qzRtq0zbKvOO2ryjDmxlAQAAHEXejNArDXtKw55L5Q22Y/bkxj2ZcU9i3JMY92TGXbVxp8m002zcaja8uqN/pdFvq/U7Uv0uT7/LNe2KTTtS047UuC0xbkuMOyLDltiwLbTsydf2FTahX9tXr+2rLbv1NpUHoQcAALAGUOjREu9KDpVXGvbkhj25YV9mS2arcm1fYdmXmvcEtmTZk6/tqx/tadZ2b5m3Naat68YtpXFbYtzhmXb5NjW37CnMu3LTjsy8KzPvyi17ctOOzLQjs3UzjqR0psBWFgAAwFHkzQi9HKPyxj3ZY6v6kVVl2Reb9/nmfa55n2vZF65ZZYYtmXFLbdpqNG3Xm7ZVxm2JYZur3+IZt6XGLaXhlcLwSmHclpt2FJY91dq+evWlZPWlyJb0r8SGLYlxW2rakZl3leZdeWArCwAA4CgSOKFH6vueHJ1kbkn+yFr/eL/+0b5sbV9g2a+z7LMse1zLnmDlBV+/KTG9Ulu2GyzbavO2zPBKsLopWH4qXn4qX/pZZkvLT+XLT6Urz2Srz6WrL8Qrz0WrL4T6TZFxS2zekVp2bTa+LLCVBQAAcBR5A0Lv0nfzrsy4Z/eurO00re00ru0q1vbElj2ueY9t3GYbtjiWXZllW23Zvm5+dd30qsH4UmXYlOtfyJaeyJd/VtnS0hPl4oZi/rFk7rFo9bly5Zls5Zlk5blIvykybUvW9uSPrUrzriwwQt8t++CYrCUAGQWGeWkFfnm6ZR8cq6Cv+JufhR6eGtMdiJIBAPCuEkChVxt31Uiht0mtI8nNu3LLjty8q7TsKC3bDcbNG2svbz7eblrfVT7eFVu2eYZN9uozjvGFbGldOq0Xj85xhx6yh2ZYo/Ns3RJ3fFkwqRfPmOXzj1SL6/ULj9Vzj+Sza5KFdfnChmR+XTi/zl/8mbu6KTBtSyy7EvOexLwnOXwFtRSmfnAs9YNjqcellsPlpIs5lvrBsdQPwtvmD5NNtwy3PPPSCtt2QtVeaTuOcxeOUh2kkwAA4GjwZoRebtmx6bvast3waOv6o1ca49M75md31181b+ze3NhpsLyS638WL61Lxufresdrm+9TlZo8aUO6rCmz4U6Opo2i7SlpG6ronawdWRBM6mXTRsW0UTZlkE4bpVNGwaSBO2Wqe7jGmt+oW37O07/kB0joHTpYqDt0Vlab+fzBsVSfXxHsx6PU2Sb02N7CmbMnvXZ0Boir27sNUHkACGYCJvT6XZUtktK4rzLtK8xWxdq+4pFVufyMv25t2LK2mDfrlzdke9buR5s3Rer4itqrI1OKp696Hm+2Pnp+e2pZeOtejrQxVdNCVTQWiWQUviSfI8iqZiVV18YyuHGypjTV7Yw7ncUPdKzhh8KhacHYnGTGoHqol4/M1Y3O186a+XNrnInV6ilD9fJz3uIz7vIL/iFrB0cZEdiMff8sfYc97rO3xN7TuK7iEPoWaYVLoO0bZTHhnt8YHP2Bo9+yv68QdGOOt5l3yHMFAMABCKzQKw17SuO+wrQvtwn92r5y03p7YUOwvCFde3lDv9G48uj6wxVVWzedRP57Sfm1B0PisWklkxtTXnNZqsph1qXUNzKk8ioen8YXVMgU1ar6GpG0iFlHEqmSxY0k9e3s5k5qW191x2Dt0LR41tCoW5ANTtcNz7JnjMJZM39Sz3hoYuqfCVaeC1ZfCn0vv9NFc4Dkj9Zb6OH4wmrvVNx22beHVxzHv7qsxVH4mG6H4hO/f9hycxTY6bchTDHdupiAvdAAAPB2CKDQK5zx8rbJrpY9xdquamOv0bxZv/ZC8+hFy/qLthc7A8vGu3daqisq49IzznC4GXea6SJxnlJV2nxHyGGXMqrLa2uqmdVVtTWVAm6NSsFSq+hieX5TS+H1lpwmbX5TC6Xhdn7jnUJtZ1XvCG9wQvhgtG5wkjO5JJxe5ekWmdN61vIT4dJTwcqmH0KPg29ujXlpBUIHnS6UQySsqupikGVwd92stB332Uh3ZVKos4k+jMQCQNATMKFHxsvbYmwsO3LLjnLliWx9+9amtevZdveTF/3mta67rZx8ymWROJ/Hz6aWRbNYGX1910eG7yqkHFoplZyYSU7MzUzJz83Iz8tKLy5M4/OKW7TMtp7Ktgdl93rLm+9TG+9Q5I25yqb863eoPUP87iFO/zh3dEYwOls3OF09MlszbWDPPebNPxEcombcfCaHxbcMu2W4vhdXd4IVelvXgvSuOO1050bsMS2FDlOdsEuwnQK+ewAIBgJn0TvWNjDsywy7UsOu1LwtM2+p1l5dNz/TPH5+7/HT3sEhdSWNFBv1Y1LCGZm0oKuLp21hSSVFN5u42tsqXi27OKc87krGTycjvj1xMfxsdNy1KFJ8OKMmo72jrrm9pK2vtHuY3jXEaO2u0WjLlE2FYlVOey+ns5/XNyYYmhT069i9Y9UDkzWjC4yZNcHcxsEterR33qaJh3RV24XVP+88xk7HpPC2+W4ZXp5uET42q99+pC7mWMXxcIdP37/XCwAAjh6BFvp9mX5PatiVGnZlpi256ZXa8LN609pl3mjTtjKKCqKuXPomMfYSh1V0505NW3vN1FRT611eWUmqmMe+Vd9MSa+MOJvx6R/PfhR68qevLqTEJxbmJXM52S13q+52lnYOlffragcmuL0jvLudTHkjhcEhXb9Na25jdvRxe4a53UO13cP0gUnm6Dx7dk00v3HQqBuULFoDExmJzdMHXA53Xcyx1OPhCCf+StvxYxX0bkfEZLcM+a6A6+63dxWOvuGDY7IWRN+D9t07SwvDsAAQDLwWodfvSPQ7UtOW3Piyfs4oeb7X0zcsTks/HXb2RHLCFVZl+e3r4rstVTc1uR3tdJW8iJx4MT+dXJZbdeZk1OcfXfzsjxe++/RKzMWk0tw8EYd6o7Gs5W5p72BV/3jN0CR7eJI/Mil9MCRqukVjccl0Fkkky2u6XdbcVnm3o6Kjr3pwgqVb4M1YxLOPxQe6FWxoiv/GOB526XRzhngaPrWXJEbadvxYRUwhVuhjCivs6k88Tut+IVewEKpI6LsGoQeAICKAPnqbyov1e0L9Ls+4IzK+kplfXF973jo8qaJSY8+c/uvlsO8SYi5TMlMkvPK7LVUTOnF3Zx2XlZmTFnP22+8+/tdPPvrlF//7v/77159cSY8tKsgqrCqnqJUVbe2M9g5aR19l12BlzxC9f6xuYk42vdDQOyi8frM8I+dMWWU0X5ypbCy40Vx8r7tiaIyjm+NN6/kPzQfw0eOGursLvUOC/TXP/QzdmbfFUEplHxyT0aUYTa+gS2VIx/3xcLsfH2ueo9DFOIvtMu0R/9reWjC7AAA4ygRM6J9YNaZ9uXGfv7rLWHpJM+9z13ZVcyaV8XEvk10cHRF+9qdTBTmZlJwUPqe4UUVrb61tUBYIODmllKSwH7/7y28//t2v/vzbX/zHyU9OXzkfV5RTxGaWi0Ql6oai1vtlfaPsrkHW0KRINycbnRGNzgjG5ySj06IHwzy5MreyKpZZmyJXFMiVuS2tFeMTwvFp7pxJsPjYbx/9AYIsfdR6l+cEtdn97YHgXHvgPMridsU+2jz1hXYHjiehR6zo4AjcxPNHOUWf6EUEAICjQ8CE3rRXv/CCv7zFXt1lrGxVWva46zvXlx/d6uptKqDkXTob9ePXF9IS09NICcyaPLW8XMDOrixNKMyJS0+Kirp46erZK9GXk2LCSfmZJZXUKj6HLpNWylTF9ZqCu52lD8Zqe4a5AxPS4Snx4CRveJozPicYneb3jXBb2+gsdkpVdYJcUXTzJq1FW9nXz5mcFc0Z+IuPeAGqpcO7bvDmuCJy9hiKYw+9n8cRelv/YTP5U2O67aEyNicPbp4H6MmOS3V0L/OwAAB4pwmc62a7ceYJf3mTa97nr75krm7yjM+uzxtbGLWlMZEJp7659u1nVyLOk65diC7JzRawaFx6UW1FHq0ouzgnqzS3sLq4ilHOqqEy6xgcIZejlNc1NjKablU2t9E6+qr7xlldg6zeUX7fGOfBWG3/BGNwqnZgnN0zyB4YEktl+WXlMXxBzp07NTdvlmnvVkzOSGb1gnnLYYQeKcFOoT/o7CEiu9iXEVrHGjXzWNeNaxDVZss7/rU7efCEXheD2O6aZuX0ETmK58nYBwDgqBEwobfs3154Jte/Elv2pUvP6h5a6qZW5AOjjcmk+AtnY3/4Iu6bT2N++Dz2xy+vJlwhUfOKmGXlAgaTW8Nklldzqzm8Gi69nEErLqtjMoQ8ulpV29xc197F7epndw3QOwaq7vVUdo+whqa4g5Ps3rGqjsGy9l5aW09lzwPeDU1FVXViZWWSUlGsUhVcbyoanRDMrIjnTAePo0dYvhX0FYRF7/caBojc3HsIHxwj2GlNuGvdIIMsCVY9wx5m770cl0Z3OUTTdAEAOIoETuj3mpc3G4xbauOWcn6dP2kQDk7KbmtF0ZFxl86m/vhF6refkj/7KPrkx9fOfBkXdykjJoyURyrKTy3OTy2uLKipKKAVZOdTC/NVcl5DPfvWLXZbO6+7n98zyL7/oErbVartKuvTcWb1ijmjbHCK3tpb0NJR2NpFu9NS0dbOEYsLS0tjmIwUiST3xo3SgWHu9JJoxnBAoXdbCRLjunE41n00eD2oufcxT7QcWxFC71RtRN/TUpiKY9E7RBx1LWxcDcq5BEIPAMFEwIR+9eWNpRf1+k314s+yh2bBvFk9qFNIFczEOHL0lfyfvsj4/q/Zf/1N9MmPEr/4Y+QPn8Z9dzwy4qf0iNOpcZcyijNphRkFeRkZdcxylZKpUlU1NJbfukNr7aR39jE7+2va+yru91eOzvH1G43mZ03Tq7yOwdK7XYXtvZU3b5f19Irv3GFXV6eWUWMF/Ozm5uq+Qb5uTjCxyD3IneCsfEAYdeOLae9hTQLPHhKf/emyFmRIj8Obj7+OsfNa7m8GiHFaV5kdgwEAABxdAib0S09V+s16/QvVtJk3refrn9waHFfRawszyHmkqJIfTpC/+yTrk9DY745l/e03MZ/+JvLLP8Se+pT8w6cJUWezK/LZRZnFGSlJnFoqnZ7BYpNFkozGGwUt7eUdfTXdg8zOQfqDMcbILGdpTWF+Xr9gEQ1MVXX0Uzv7a9ruMzu7BG1tQrG4mFoaw6olNzfTu3rZQxOc4Ycsv28D3/rGHYz1Set9knJPhrMuBkeOkfOeXFE3ToMdP+rGdmv2rLwvZ3aw4CIAAN5BAij0cvNOg/GlanyVNbHMM/7c0j+qKClNpWQXpMQWffNJ7N+Pk//6m5jTf6P87Texf/6XiH//x4vHfhF57NeXw7/PqikU5pMp0VcvUYtTqNRYJitRoc5uaaV29jG7BhjtvVUtndSBCdbANHNiqW7pkXhxTTQ6R+8eonX0VfYN8rV3a1tb+Y2NNeVlcVWVCRpNRVsHvW+U3aej+3cP+Eu9WwmjbpwuESIfjhfPjC8hN8RCb0UsjIM3MxabLXZmFnqtNBTYGKGWwgCu+QMAwJsmYEL/cI21/Ew4a6lbWpesrquX15r6R6QFRfGlhfl55NKUiNIrP+T/+An5i98lfP5v8Sf/PfVP/yfm43+O/ttv4059lhJxOjU+PCk1MTYnM6qOkyGSZNy4VXy/q7rjAeNeV1VrZ2X7g+qhqbrxRc70KmdqhT25zBqbZ/SOVGo7SlpaK1rvsbVarlxeVkFLKCmOEIky2zsZPUPMB2MM38vv0StNGF7pPRQdqfIom9q3cV18Bwv+YKxnoScI5MclEDOBAQB4ZwiY0M+ts5efCacMzBkTb2lNsbzWNDSuoNGSiinp2anZSVezrv6UfvbzlO+OJX3zUdLXf0j98/+N++SXpK//lHbh6+zo81lJESkZKUlFlEQmM00szb6jLe/sYd7rqmlpr2jvYQzoBKMzvGm9cMEimjPxHxrYE0u1Q1P0roHqrl52Rxf3biunvr6CzUqj0xNksux796t6h2v7xpk+Fx8Vd2jD3UXuu/ARdhuocdFUj/Y+Ih8iocfJDRn/7pfQuy+wDJOkACBICJzrZoOztMEbma/SLbNm9JIF0/WRCSWdnkrJTcgiJydHpUSdJV36hnTmROL3xxK++WPyX/4l9pNfJn71p5RzX2ZEnE6LD0/OSE4upqRWVKQIRbnN2qr7nazbrbQbzaX3e1kT8+qxWeGsSbayrliwCB8a2JPLrPE59tAku3+I19nNa9GybmiqVcoShSJfc7O0vbPqwQizf8IPi54Qp/vbvxgbj74OtEvdI1jXDaH0Y8ZRD7p6gTPiCHw1ABA0BM6iX+PMmDj90xXDs7UTC5LpBfXgsJTOSC4uSCgryCzKyEmLyYg+k3LpG9LZz5J/Ok4+8Zukv/46/m+/jf3uk4RL35PiLidnJKcW5adRS5PZ7MyGxvLbzVUNmmJ1U2FrB3N0Wjk0xZ9elSw/Us6bhZPLLN1irW6+bmyG1z/Eu9fOvHmr6uatGq2Wee8eo6OT2TvAHNDVDk75btEDAAAELQET+rFF5tgCq2e0anCSMzwhGRqX9/SKa2pSaGUpdfTiukpaUQYl8RI54sfk8K9SL3yZ+f2x9BP/Fnvs1xe/+Cg87O9x8eEpmcmZhbmZpcXpVZXpPF6uXFEkVebL1HmaZtr9B+y+Mc7EknjBrJg1CieWWLrF2okFjm5OMDjCu9fO0Nyi3Wmp7uhg9z7gPOhnPRiiD0+xRmf9j7oBAAAIOgIm9N2jVX0TtR399L4xQe+gqLtP1tUt4dbllhbEMypymeXF+akZcRcSr/6QGP5V6rnPyD8cI534bcSff3X2xB/On/4yMvJcYnJsSjaZXF6aSytPp9dk8Xi5AkmeUJqtaKA0NZf1DNeNzglnDbIZvWhqhTu1wp1a4o3P8nVT0u4HdS13q+/eo3d11/X0snr7GL2DVeOznAPG0QMAAAQXARP6uz20jkHGvW5mV7+ovVPU3inr729qUNcU5ESXF5Gpeenp8QmJl5NIF7LiTuVdOJn27Z9jT34UefLjqz/8LfL8N9ERZ+KTolJy0jKqaCVVFXlMRj6PV8AT5nKFmUJptrwx/35fbZ+OMz4nmFjkT61wp1d5uvm6AV3txENJ3yC/vYPV3lHb1c3q7mU86GcMjtGnlnjTq4Fa1AwAAOAIEzChb26vaeup096va+8Wa+8J29sUoyPae1pZeVFKZWlWaW5GDomcT6KUplfnxdfEnyv48dO4c18mX/0pKzYsL/ZCVvzl9Iyk/LKCMjqNxqwp47HLRcIyPr+wri5LIMyR1+drO6s6B+n9utqRGbZugTOxyB2equ0arByZEvYMctp7att7ajt76N199MHRuvFZ/vSKYNZ4uI+DAwAABAUBE3qZskRZT2u8UaNurBbwS9gsikrJ7Gi/wawuysskJ0VGxV+JTbxCSrickng5K+VqQXxYYez5otNfJJz5Mi45oiAtpjAlKrM4k1qYQaEVF9dVVzCriyrLs2oqM8VCquZGVeOt/LbekgEdY2ym7uGyaN4gm1gU9I7Sh6a4d+6XNLbkt/ZWdgwytN20jkHGxJJ01iSbMx/sC1MAAABBRcCEXiQtkcipCnWFTFHBZuXTysn06nyRoKaSWlCcn0NJzylIp+SlFCRHpkefT7h2OjEzjpZ4ufDS96RL3yfGXcqIv0yOuZhIikyKuxKVnZxCK8pl0Cg15dl0WhaPVSCVFCjU6U0tWfd6Sh+M0kcfcnVzguFJbu8os3OwuqE5V6HJuNVZem+gpqW3on2IMTIvmloVTev5ga0sAACAo0jAhL6Ol8MV5AnEBQJxUS0zt7SERMlLLMhPrqQWlBVRyilFNEpZcVYJOSYj8mzsxe+upsVQIs+Rrp1NiA9PiQ9PSo4iZSaRM5NIyTGReenxlaUZtdXZbHoOpzZLxMuTS/LqG/KabuW23i/rH2aPTQqHJviDOt7gBL+tt6qxOVd9K+tuD613jN07xu6f4E4siadWBSD0AAAA1gAKPZOdxmSnsThZdbw8Nju3siK9ID8pKyOuhlZcQsnNI2dlkzKzSTlpsZnxl0gRp2MSwtPCf4pJikjLTqIkXk0mx6aWU0rK8im0wvxqaj6jIp9ZmVNbnc1h5kn4xWo59caNsps3y9raGYPDklGdbGBYODDMH56QtHVX37pXfLu9uGekdnxOpFuUTC7LZgyyGaN41iTy6xbQU2HfyudSbWsPvIlL2z5PSDQFDDMrONBrIfh7m0RLsNlywN+LmPCFdwB8UwV4nwicRc/PrK1Lp9em0WszWLV5DHpeaXF6dkZiRWlhTlpawtW42Msx5JiMHFJBRmxOwmVy4pXsqHPkzLjSvOSyqPNJUWHxucmUgnRKWX5xRWFJZXEhrTC/vDCnqjSPXV0srCuTi6iNKlprM/tBr2xgQN7bJ+p5wO8bEGpuF2lailruU7uH6SMPuboFvm6Br1vgTa5wp/Qcn4uPLxZvfLEXrAK2FB62DEQ5EAs9gaoGcm36NyH0H7h9TgC0HnhvCZjQ80V5dbysGia5oopcU51VU5VXUpSeQU7Ky8hIjku6dj7y6plI0rX0vJTi3KTilIicqHPkyLNppKuUlGuUiDOJ4T/FkK6lZyflpcWl56XmlOYWUvMKSnJyS/NyqkqK2NVljIpcuYimvSXoapN3dyp6e2RdnaK2+2wOP1GhTr/VWtTWU94zXNk/QR+YZPTpqkYXGGOLvi6B4LYOjEMa3rQWIBXQvvjM4T9U65fQ46ygcKCPannkYELveRFQ1F70WkNuB8AXz4H3jAAKPYXDz6czs2iV6VUVeTWVRSWFuRmp5NT41PiIpPBTUWe/Dr/8Y2zS1ZzM2JL06KKoc+ToMHLEGVLU+WRSRDbpWnpqdGZBWnFKdGpOclZxNqU4O4+SnlGUnVlDLRHU0ouzU6Wcau1NufamWHtLeO+u+PYthlSaV1EVIVdl3Oso6xyo6B2pHJqij80yh2eqJ1fZU3ofZ8bi6chK23Fc7cCat45zEeuLuQQRvegY2sDEfNrJJjrOXeglxvCWMHO4JogKgJcDAgKhd/ugFfLe0bpJt1eIrIWwbI4L+VQDHjxmfgs9eo1P9wMO34kCwFEigIOxeXVcCqM2r7Iql15VXEuvoJVSc9LzSNFpcVdSL34f+9Wxsyf/cu7Ct/EpV4ty4mmZ8SUZcZRrZxMiz8dTyKUUcklaXHpRZmE2KZOSnlOYmZOdnJIaF5OVnEgvK1EIuJlJsQJm1a0GaYO8TiGqUitreNycgoKLVTWRjTdy+4dZI9PssZm6mVX+olm0YBEub4iXN3wLr8SsHowHzseePH3BA0f7EOtBHkzo3S+EPMW9AAcSeqIV+VHfHURf0VPZiFYAxXlxcXPIIPHsTcIRevQXXcCiB953Aib06gY6T1DCYFLojKKaypLSwqL8rAJKVllmUlHEuZTLPyTHnM+98mPat59cO/tFQvKVwsI0WmZCTvSFuPBTEUnXSIUZBZS0PFJUfELEtaSoawnXriREXs4gRZfmk8sK0guykguzyZUl+WJOjUpSy6zJy0wPJ6eephRcvNfOGBkXTi/KJuZ5k4vcebNw3iyYWGYsPhYurvsWdUP4vREH6A9no5drR388BKkghP2HL0Jv9Wh1IncRF+AArhsvn15BCT3B8paIi2L01PXlE0Ru6CvifzLFJ6F3T04dBx898L4TMKGvv14jklA5vGIOl8ZmVpSXlOZlUrJSilJjKVfP2oU+6mzumS8Tvv8k8swXseE/kiJOJ187kxJxhhR5jhR3KTXucnLk+ZifTp6KunAtPSElLT4pKTIq8VokKSqaFB2ZQ06kFmUxKvKLKKT4mFMJCT8wa1Pau7jDY5Kxh+KpRfHDVfGCRbLyRGZ8Jtc/k+ifSVZ+9u3j4F6FHvttJqQrA+PrQKo2kU19GKFH5YkQek8FCIDQ41j07uawW9nc6s2B6zZRDjGsguMcj4fXoBq8A+C758D7RMCE/s5dVtPNGnVjtaqeKRUzq2nUnPTclPjM+Kvpl35KOPd1zOUfkiPPZIX/QP7pxLWTf7p87NcXP/5F+H/8+tpXf0o6/Vn6xW9yIn4qiDlXGHehkHSlODGccvVUyvlvoq+cSkyJzM9PLSQnxaSnXSUnX0xKPJuZeZHFyWjv4k4vaqbmVQ9XVIsW1eqTesMzlWFTbXqhNL9UPN5RrW3JfCs7nnIhffTehR5XtZFbPEgz8l8PQk+0y0MBDjAY64ePvgV7llvZ3qjQY5bjd/+2+1uJlwWAd4KACX3fiLC7n9/RI7zbJrjeyGYxS7PTU2MiYmOvJF05G3v+79fOfRN57WxyQnhWzHnyha+Tv/xDyq8+DP+H//T1L/7buRP/lnrmRNGV78pjz9LjzlfFh9GSLleSr1VlxFSTI2nR5/LOfRcRceVUYvKpnPxwWlWCsoH6YFg2PtMwMCnsHUdUvbwAABSqSURBVGPPmVTmFzeXnqhn10QLT6QLP4unzeyNPdXGnsrHwrtF3TjUGT0KSuy68SD0dtz6Bkdu9pgWHPe9rVS2w/Ck1nsBkDng3LKnqBvELWCjbrC6SVg2XNeNy6eP47ohwL/BWLfAIRB64H0nYEI/syKZXpSNTUt7BgR3mmt53KKcrPjIqxejwq9Gh0dHXYi+di46PjwpLS49LSYt4VJW2JclH/0T6X/+5x/+13/57tf/cPHj/xf9+e9I3x/P/Ppj0sk/xX715+jv/xp7+ouEU5/H/f34lc+OfZNIOk+jx8gbChvvlN28V9kxwB6cEvRP8xvv5ej04uWnDQ9mqluHC4ZWmFOPecPLVfpN0dq21Ofie4mj9zYYi6ezrs9IYTJ0H370JPT2axHm5l3ocZX0EHH0brpJWDacejsutXgbjHXvmTxHyhO9YXgarQWA94qACb1+Q7LySDqzIh7Uce/dr1Eoi2m0ZHLK1air5xKiI1Jj49LiE9ITSOkJiSnRMXGXEj7/45XjoZF/+Ofz//qP3/7iv3/+y//x2ce/+v6rv1z68bOr358I+/bTM3//9MfvPvv+8qlL+eRcLquiua2uuaPy5r2yBm3hjfbitsGa/mnu0Dy/oS1raJmnMwtuD+Sq7yd3z1XM/CyaXuc+XGOuPvNvmWLPM2O9hFfa/0Vb9IRBhy7lOi7VEfjosV8cdBWvUIc/sOleAOJvFh5iZixxlAu2bNissCGhqDITqbzVf6HHvIWA0APvOwET+rWXQssL0fIj/vhcbf8Is62Drq4vYbGyiiiJBbmkkrxUWlEmrSi7ODeFkp6QR0668OPpuPCYtPjklJj4xMgIckJUQVYSrTiNUZkh4OTcaKi4f6+uu7Oup4s1PiZeXr3x6Hnb+JL8/jCjY4wxvCCaNikfWhRTa/L+BZbOIpx6LBlYYfbMV46Y6+Y3Zfpd1dw627gJyxQT4lnoAQAIJgIm9Bs7wvVdsfGpYEbP1s3XjUzxuvrZN1sqrjdViMT5nLosoSBfKikSCSlCQb5MWtjYQLvbyunqFvc+kIzpVCt6rdGiXdJfX3tyZ1Evn10WrZilxnX56pp4ycRbtAgXH8kWN1SW7eYX1o6n1jbD5g39VtMTa6tl/+bSS5Vhu/GJVbthvbP8Srn4UmqxNpq2pI+tysBWVjABQg8A7w8BE/rHO6JHO5K1V1LzC6n+iXz5sXzBrJgzKMfnRIOTvJ6R2q4hRu8oa2iKq5sXTy1J5kyKeYti8ZFqZUOt/7nB9LzRstm09uq6ebPe9EJtfK7QP5WtPhXb0vJTsemV0rilNG3XW3btybyjNu+oTdsqw47CtKMw7iptybSnsuypzLtK8648sJUVTIDQA8D7Q8CEfn1Ptr4ne7yjeLStXNtSmTfrjc/V+p/Vq0/qF9bkDw2iab1wzixeXlfYgiBXn0tXX0r0r6SGLZlxW27aUZh3leZdpWFLpn8lXdkUL78QLT0XOpNxW2rclpp2ZOZduWVPYdlTmHfl5l25aUdmS7Z/EXuV5l2w6AEAAAIn9AAAAMC7CQg9AABAkANCDwAAEOSA0AMAAAQ5IPQAAABBDgg9AABAkANCDwAAEOSA0AMAAAQ5IPQAAABBDgg9AABAkBM4oV9uOvH70x/mDiI2GZnnTn/4e7rW0yl0LfKPwDJjDQ2xag6fj8YaEmJPyNzCfNw4Yw3FOxJzfEiINSTUOuP1LrwVhoqTBQAA7zWBFnqkXrtv8XTuuyr0M9ZQp3pqXFqsCbOGUq1Wq3WGag0Jsx+LuzHMcfoMFSXlM1RrSIg1DFE+2xaUUmvQmu6tMMiNAAAANgIr9PT43NPxHY4tHfQTuXSXgtt0/3enP/yd4xgci34w/vdk5jI2b89mslMrbUIZEmJXPeRZmF1+ZKtxSbbtFA36D2R3grNxxhqKUF7cs1Cg5TskxErVII7ELYzX/gxxU/ZOAu8lIyzEqtG4agm3xgAAOIoEWOi1HXSn90abS2Z2OBXcyDxn1/d5EfnDc03zVl9dN9RQHHOVGmoXYpeZjNRWr3/4ni0Sjdu1rFar02bH3Uhg0WvCEBcKcQh6qHUGUQY7XrsEjTUk1EoNI3TdhCE7rVDrDGILskhhIY5exNYNIP4OgPsLAIC3R6CF3joY77TNzzXN4yq4u757EHoC9cQ9ICyEUCI97PKarRVxmD0TNzvdLvTuGx1/Y1zwYc73DDeddflhiEtixci3m5SjTve4xb1D8vA3AABHkYALvVVr89500E+IjBgF1+baXTcf+in0IYjkFB1NmGujy7Nh2+JujeLt8jVbx/GursJ3ix7jVbcdgLCskde15e/8A/daOIXRYD0wWC8/RujRW6ihIPQAEOQEXuitHfQPcwe1uWTmMsb5fvqEyIg60n+L3kmY03dMYHoTOa89+7Xxs9XguER89dFrsIY8dcaxEV0GpOC6yzom6gZVGM9vJ2DRA8B7z2sQeutg/O892ezaXH8seqQzHc/VbjPANchAF7fDcHb5nC3KJEfga9QNrkXvkFqnhmrC7P2Bq1ROkDpOUBjnWbhDCyiPU4hVQ+yjB6EHgKDkdQi9VZvrCKjHbLSH3Dj8+P5H3bg7WMI0LhOYGoqNw7Ft0eDt8jFb52Cpuz/H1zh6ROQ7Vj0du8KodlcSTogLQuj9KoxLoN1DiQiibkDoASAogZmxbwf8qB6r1WrrbMLwdgAAAById13oMQYspLeVAAA4urzrQh/kEAf/AAAABAoQegAAgCAHhB4AACDIAaEHAAAIcgK9euXvXAm7ctlhwJ3fhBf/7hXCCahvCR9XX3hHOGylBe7W3pGfDwCOBK8ljh717zsm9DjLT75VjpbQH7bSAndr78jPBwBHgtcm9FYj8xxmFQSE1Y86cjDetvEcPd52ivu0KdvqLojZTFbMJztCrCGOOZ9UKuowK2bqkHP5yVArNQw1gcg1fzUMYTD6swsFZnHgGWtoqDXMbd5WGOK+kPObNG6Z4EzLCrWGORZO8LSqcKCWKUasnfA2F45GlwQAAK+8ToseOzl2MP73bisVW43Mc441cDroH+JNi7Va0ct4ua8VjF5txsP6ujNU11IBdi0Ls+cZGupy6Rx4FxLs4sC4t4AsMHKBBLdFN5ETrFALLGPWU/O86Obhlil21t5bXzjaWRIAAHzhNfrocRadt4u71WWzo7oHx0uAO25GLpFY4K4H6cS5cJj9D4dhqAmzUh3yfahdyAK7LyVGsA6a80S7qBF/tMR9jUzkUmj4PuvALWrmuv23vXA0trYBAPDI63PdOOx35KqWLqFHOHbcN7oTIKF3d9DbJIMaatXY5A8hggfb5bg23rrwnhe8dBaYYOVLTDeD2mh1W4fZQ0kOukwxcuFP3Eleb2zhaHDQA4BfvD6hdyxM//YseuynmjQIJwlivckwqjXUYZVrDr3LVeA3a9FbEYehRDBQFr3Gyzen3tzC0e61DQCAR16rRY+zJP1hfPQ+Cj2RHuEHVmqsoQ7XsCbM5XM/+C4H2MWBiYX+8D563HWYCUtyoGWKkZX2dheOhsBKAPCXNxtH7znqJreJ6THqxl0lMasQa3CDWBxShXXQW117kd/kwwS3+LuLcHFgYqE/eNRNGOqmPMUaYQJX/F+m2L3SiBwsr3vhaHDQA4C/vEszYwMRcf9+LZ7+DkfcAwDw7vDWhd5hzv/uNKHfBhYrhoSXAADwkbcu9AAAAMDrBYQeAAAgyAGhBwAACHJA6AEAAIIcEPo3woYhlDn3VsJjZoZ0IQrDmw5EOsz9vr26OjgbhlCmjrrxhq42M6QL0a4f8OSFubfQHnBYDztAjb0rhT96HEGh3zCEMvtDmP1hC74difNIvKQq+kPwd9nRaPt9bFIzQ7oQr03W9zIf7Hir1WorM/aO1sOYXu709WC/bujQS3/P1Gj7Q5j93qsUl4W5kINe11nnB6qrg9/vAZgZ0oUwPbdPQhklrF7H7RPdgv2imBO9NtQNQyh+ngeqMcfv69dzAViPstAjjT7CRuNonRgL0Sb0HqXEfhUddcjetgiTYi5M4X4JvNwQT6YXOcMc73a6o8WjL2rf6MrTcfuY9AZsT9sv4r9h7lTbg5l7BErkky7gtCvfcb9fhzHxGmrb9rPaWrvDznD06F5+aPthOBXi3sZwTnRk6HjrsjcwR9eIax5huiXHK+Z6mGujD8+jT4UECHnHhd75tHhLCoMG37LGbdm+NayFObfO4yVV4bwWoTHiEHEvKWzhJVVBkAm2QeM+xjhPLPqhcpzlyEej7Q9h6kKJLhpIDib09p/bVjN+Pc+OG7d1ut4rCgffhJ6g78RNOuoG8U/sPzjtSqFzmOEGRIWjRRmJrS/ErViPGop/146rYxPmlchpM21YnU+QS+hdXbsP71Ig9AflHRd6PA5kec0M6RCn+GxBYC/nLvTrYb6LCEp//XoDcDuF8Il1lcduXjn8VzaZeDO+Bdx7dIoFUXWhzEM/Hmn7j0LFmpMOK8FjJhqto5zOH3phzoe2gemKMPd70Bca33A25hl0O7Rf0dY28ETT1gbw699ThTszR96Xs1f2+mMhejtnu0Xqu6feBc9ThD7+zTbso8pRF3oibztGfwktYjwzBPUMzwzpCC0XV8J5pNH2l4664GrZYQvrYThlJnx9QdtrVqvVo2nmLLbzIXmdnk0fX18cN/ISbyDBarXi9d/e7tGKcRyjLEcfXcDOhjGncRXAF6+LT++ar8mVbBd6AuvB9t6GV3KP3Y89N8crEeI3QmboUlWUT8xeG15qGzkMgOt7xLlNn1sXmPkeORpCj/nJ7ULpfEQX5txbjEOAnDaOLkzrNH+QFj1e60c/86HauVC03UR1WlI47h0HC16c+56eCpTGvaQOzfkp9C+pCsdDuDAXwuwPGzrMSOMB8NekdRxvK+2CfavnlwB3U85unuM66/FADeFgexqs4wsN5qUQfb+Hcvd7B/E4OKxsrYGqQPRSeL+y6ywvhgvqncZ2lqv+7buQHnYPXQvyFOQmTDdJUFHuryY4Fr0/b+fvMe+S0OOKF/rJJ8bdL+ky9m1ODIS/xZvQO1+KtXOhDmPcJfTIrLwKPWHMj6emae+lvProMaO1mCfHqXcLBAPLr9EI8kvoUb8d9t5d/aXPg3W+9mfo8RviQX68G/HFog+g0KMvZ/dTuaxvjVYXahN6wkBPVxPy5LrBM5jcmzfBaxyutYTT2NA+GWfB3IoNQh84XrfQ+zyaStAm/PIMYJsFwpgNHXo544/Qu67u8Ce63je16zOvV+jRsu4cufLFose8RiD93dp1q1fjK2D4LPQ4+uLujkNWCH7hnT4c23ubL33YDGZEHVfpfPV6Ye43kGOw7uB5pV+iLHrcF1xHxxC2gFdCj28h+F4U394OMe8EjmpfR46g2B9zTIYg9IHjXbLo3cE68hCuQLTSEXp+EeaD/0K/HoZwR9r9y7aznFc/uOvG86uu7RmwP5l++OgR5SF4OA1Er/aHBN2F+OTKIIwH9zUmEtUjIlqFzvv0Jfc5Fnium7AFxGgt9ma9p8D76PEblT28B+WDwt6a8xh7qbCV74+7CRNV6cvBrjFb1DPosYpA6APHuy30NlyPPeJHdbl0PLcYlzPR49gOXvt2XsIm9Aq0sxLxZurJdkM/Pz5ECCDegewvE84oaf+EHlsG28GvbW6hx3EUPOEjnEqDhqgrJRq89eknxgvfxPulfBZrvI4NJxDocLg7plyajjLk0dE1TuMd+6Sg7Gj/hR77oxC0SYfQI+MpXYH/iKEvbIZ+RrL6UZHvIUdB6F3WIp7Qe3TLuk0tIbDoCR0syGE6vMM8WPTYwrtJG6GvwOFV991Hj1ceT1bna7Do8R9+5J0SXdTbqDVhT4zAbVQDVSrM6fj+K8TP4cyNqsX1b/iZAqD1jhY7hDZyCYQeG6iKmpeEGVnFNHLcqYU+q+0CTueNcd3YK98ZhGYbGbaNe6FbCE6LAov+oBwNoXcYCzZXBkroiVYgQMic+14vjcN1rq1JeXu8EW0R78GwR0T0uzzIjuQWZ+kwvg4cR+/VorfiRkH4OeaJx8GF3lueXoQSM+aMHfTDFy8PdrqftrwNYlcVZumeQ9YzbqfoJvQEzcPju6/vFr3j10TPTSHEKfSoYCHb86v1HmSJc2mvHSeiltx6NR82BiNHROgdgRmhGKEf8ujMJWy72DcDoplH3ifveLDoic8icuC4FiA7rNAbPM4b0IUSOi7eJaFHxcV7OMCZMyqam8jG94iHMBtfTvQhvPKQ9bxAZNHjvPO5/RaBEXrE+xAqyJIIu9BrkeFzXoaOCQGhPyhHReitGq1jZjxSoD3Lhy9CbyVYNwbZpA4j9B4SziQv5FoiBxD69TD7WIL3+YR4+PTcEhFoofdhsI6gDM5JA37FvTjtTR/O8tGhQaRfh6hnXKFHx2UR93CBEHpMg/fhLPeKRTlzfJgWhy0kCL3/HBmht1qtBIOxyF24c+7xJ+IjH8gw92cD2f78lmyr1erVosfzEeM8wDa8++iRblnso+7b4+FpfrwPeB8680fo8ePtvON5lpO3kh986MKPeQOHqmdc1w1uAC4OhxV6/B/F29wFrP/NzTZCzW30jI+9Agi9G++00PsdRI9uLi6hRz8eOCYbTsw74snxZtF7nNNPlHxYO9ND6Bu2xbs95z4NG7qOP6TKWz0HFPlr0fswPx4N0sT2dzoucbH9ycHHSx+2nn2w6InBFXr3SRvE1yUsOXY+l/vYgGv9JbyWgHzSvQdcvrYpx0HMOy307wqY8TQ/zvLHonc7Fx3K+a7HFeDGmx8I4sUXkWBtW5/rB9UFBqTAbzDwA2+1D6vV6tsrhQeHONEtIBTcez/tYYE/Vz6elrTzeglf58kDWEDoAQAAghwQegAAgCAHhB4AACDIAaEHAAAIckDoAQAAghwQegAAgCAHhB4AACDIAaEHAAAIckDoAQAAghwQegAAgCAHhB4AACDIAaEHAAAIckDoAQAAghwQegAAgCAHhB4AACDIAaEHAAAIckDoAQAAghwcoYcECRIkSEGZQOghQYIEKcgTCD0kSJAgBXn6/1yLWEdC/NYBAAAAAElFTkSuQmCC" alt="" />

PLSQL_Oracle Logon Trigger的建立的更多相关文章

  1. Logon Trigger Example (C++)

    This C++ example shows how to create a task that is scheduled to execute Notepad when a user logs on ...

  2. MySql cmd下的学习笔记 —— 有关修饰器的知识(trigger)

    关于触发器的理解: 进行数据库应用软件的开发时,有时我们碰到表的某些数据的改变时,希望同时 引起其他相关数据改变的需求,利用触发器就能满足这样的需求. 触发器能在表中的某些特定数据变化时自动完成某些查 ...

  3. oracle 笔记

    1.Oracle认证,与其它数据库比较,安装 Oracle安装会自动的生成sys用户和system用户: (1)sys用户是超级用户,具有最高权限,具有sysdba角色,有create databas ...

  4. 最全的ORACLE-SQL笔记

    -- 首先,以超级管理员的身份登录oracle sqlplus sys/bjsxt as sysdba --然后,解除对scott用户的锁 alter user scott account unloc ...

  5. dba工作内容

    一.数据库管理员的工作内容 关键词:dba工作内容 转自:http://blog.sina.com.cn/s/blog_44e0d0490102won1.html 1.规划与建设: 1.数据库服务器环 ...

  6. PL/SQL详细介绍,设置oracle相关

    1. 实现参照完整性      指若两个表之间具有主从关系(即主外键关系),当删除主表数据时,必须确保相关的从表数据已经被删除.  当修改主表的主键列数据时,必须确保相关从表数据已经被修改.为了实现级 ...

  7. 韩顺平Oracle笔记

    韩顺平Oracle笔记 分类: DataBase2011-09-07 10:24 3009人阅读 评论(0) 收藏 举报 oracle数据库sqljdbcsystemstring   目录(?)[-] ...

  8. Orcle 查询语句

    首先,以超级管理员的身份登录oracle       sqlplus sys/bjsxt as sysdba   --然后,解除对scott用户的锁       alter user scott ac ...

  9. oracle笔记

    一.sql*plus常用命令 (1)connect 用法:conn 用户名/密码@网络服务名[as sysdba/sysoper] 当特权用户连接时,必须带上as sysdba或是as sysoper ...

随机推荐

  1. DELPHI WEBSERVICE

    一.服务程序 1.依次选择 NEW -> OTHER -> WEB SERVICE -> SOAP SERVER APPLICATION -> ISAPI DYNAMIC LI ...

  2. caffe: compile error: Could not open or find file your path~~/resized_data/0 and a total of 2 images .

    I0219 14:48:40.965386 31108 net.cpp:76] Memory required for data: 0I0219 14:48:40.965517 31108 layer ...

  3. Intro to Filtering with Network Monitor 3.0

    https://blogs.technet.microsoft.com/netmon/2006/10/17/intro-to-filtering-with-network-monitor-3-0/ h ...

  4. 如何在Unity中播放影片

    Unity支援影片貼圖,也就是說可以匯入影片並附加到遊戲物件上,基本上您電腦上的Quick Time播放器能播的,大致上都能播,已知的支援的影片格式有下列幾種:.mov, .mpg, .mpeg, . ...

  5. for循环小题

    已知数列1,1,2,3,5,8,…….,N.输出前N项的和: 出1到100之间所有偶数之和 国际象棋问题 已知数列1,1,2,3,5,8,…….,N.输出前N项的和: int a = 1, b = 1 ...

  6. LESS CSS 框架简介(转)

    原文地址:http://www.ibm.com/developerworks/cn/web/1207_zhaoch_lesscss/ 简介 CSS(层叠样式表)是一门历史悠久的标记性语言,同 HTML ...

  7. PorterDuff.Mode error

    Android PorterDuff.Mode error: PorterDuff cannot be resolved to a variable     Answers:   Add this t ...

  8. HadoopDoctor:来自腾讯数据仓库TDW的MR诊断系统

    TDW是基于Hadoop生态圈研发的大数据处理平台,MapReduce计算引擎在TDW平台中承担了所有的离线数据计算,是TDW最重要的底层支撑平台之一.在TDW 平台中,除了MR程序会生成MapRed ...

  9. Presto 来自Facebook的开源分布式查询引擎

    Presto是一个分布式SQL查询引擎, 它被设计为用来专门进行高速.实时的数据分析.它支持标准的ANSI SQL,包括复杂查询.聚合(aggregation).连接(join)和窗口函数(windo ...

  10. [mysql] mysqldump 导出数据库表

    1.mysqldump的几种常用方法: (1)导出整个数据库(包括数据库中的数据) mysqldump -u username -p dbname > dbname.sql (2)导出数据库结构 ...