2015-05-29 Created By BaoXinjian

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


使用WITH AS 语句可以为一个子查询语句块定义一个名称,使用这个子查询名称可以在查询语句的很多地方引用这个子查询。

Oracle 数据库像对待内联视图或临时表一样对待被引用的子查询名称,从而起到一定的优化作用。

WITH子句是9i新增语法。你可以在任何一个顶层的SELECT 语句以及几乎所有类型的子查询语句前,使用子查询定义子句。

被定义的子查询名称可以在主查询语句以及所有的子查询语句中引用,但未定义前不能引用。

WITH句中不能嵌套定义<也就是with子句中不能有WIT子句>,但子查询中出现H的“子查询定义”语句可以引用已定义的子查询名称,<可以引用前面已经定义的with子句>

aaarticlea/png;base64,iVBORw0KGgoAAAANSUhEUgAAABQAAAATCAIAAAAf7rriAAABHklEQVQ4jc3Tv0sCcRjH8Wc4/wL9H4T0P3CpXYQcHQpuFIQayjvXQrnulhosHDpQsBZB8Q9wuWu1QVBcbMtNyaAm3y0e/fC4Lmvo4bO++D6fB74CLJdPm0X+MRaRn2HuowziDFNMVBFhajDvsHB4GYXBMQZxRikeVBHh0WDeDo+jKzz5gJ8dXjfAU4NZm4UbEse+4uC1qVYplSgU2Ntf4aHXeXrGLBjX65TLaEXyeTIZdrYjCskEIpLdRdMwTWybOxc/3GpxfsHpCUfH5HKk0xGF5JaHi1gm9jWuP3Ycbm+o1bAsDg9Q1U9YC8b9Pt0uzSZXl/LdrOHxmF6PTodGg0oFXY8oJLzOuveyf+f1vB8si17EDFj7zz5GyPwKvwECQrZ4yvBSdAAAAABJRU5ErkJggg==" alt="" />二、使用案例


使用案例方法

select e.ename
from emp e
where e.deptno in (select d.deptno from dept d where d.deptno = 10); with a as
(select e.ename, e.deptno from emp e)
select a.ename
from a
where a.deptno in
(with b as (select d.deptno from dept d where d.deptno = 10)
select * from b
); with a as
(select e.ename, e.deptno from emp e),
b as
(select d.deptno from dept d where d.deptno = 10)
select a.ename from a where a.deptno in (select * from b);

Thanks and Regards

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_基础系列10_子查询WITH AS(案例)的更多相关文章

  1. PLSQL_基础系列09_时间戳记TIMESTAMP(案例)

    2013-11-09 Created By BaoXinjian

  2. 【T-SQL基础】03.子查询

    以前总是追求新东西,发现基础才是最重要的,今年主要的目标是精通SQL查询和SQL性能优化. 本系列[T-SQL基础]主要是针对T-SQL基础的总结. [T-SQL基础]01.单表查询-几道sql查询题 ...

  3. 【SqlServer系列】子查询

    1   概述 1.1  已发布[SqlServer系列]文章 [SqlServer系列]SQLSERVER安装教程 [SqlServer系列]数据库三大范式 [SqlServer系列]表单查询 [Sq ...

  4. SQL Server调优系列基础篇(子查询运算总结)

    前言 前面我们的几篇文章介绍了一系列关于运算符的介绍,以及各个运算符的优化方式和技巧.其中涵盖:查看执行计划的方式.几种数据集常用的连接方式.联合运算符方式.并行运算符等一系列的我们常见的运算符.有兴 ...

  5. Sql Server系列:子查询

    1 子查询概念 子查询是嵌套在另一个查询中的普通T-SQL查询.在有一个SELECT语句通过使用小括号创建子查询,作为另一个查询的部分数据或条件的基础. 子查询通常用于满足以下某个需求: ◊ 将一个查 ...

  6. Oracle 数据库基础学习 (六) 子查询

    子查询在一个select中出现多个嵌套查询语句 1.在where子句中使用子查询(一般返回"单行单列" "单行多列" "多行单列"(可以提供 ...

  7. 7、SQL基础整理(子查询)

    子查询 (用来进行两个或以上表之间的查询) 1.首先新建一个bumen表和一个haha表,填充数据 2.利用两表进行子查询: --部门人数大于5的部门中最大年龄的人的信息--- select MAX( ...

  8. Esper系列(六)子查询、Exists、In/not in、Any/Some、Join

    子查询 1   >= all (select salary from orderEvent.win:length_batch(5))"; 注意: 运行以上三个例句后的结果,刚开始让很费 ...

  9. mysql 开发基础系列1 表查询操作

    在安装完数据库后,不管是windows 还是linux平台,  mysql的sql命令都大同小异,相关命令都是相同的,每个命令结束后 都以  ;  结尾, 注意在windows平台中表名是不区分大小写 ...

随机推荐

  1. leetcode 117 Populating Next Right Pointers in Each Node II ----- java

    Follow up for problem "Populating Next Right Pointers in Each Node". What if the given tre ...

  2. 【NOIP2010】引水入城

    以前一直以为是什么高端DP,看了题解才发现是水题,老是这样看题解才能写出来到赛场上怎么办嘛QAQ 原题: 在一个遥远的国度,一侧是风景秀美的湖泊,另一侧则是漫无边际的沙漠.该国的行政区划十分特殊,刚好 ...

  3. java的nio之:java的bio流下实现的socket服务器同步阻塞模型和socket的伪异步的socket服务器的通信模型

    同步I/O模型的弊端===>每一个线程的创建都会消耗服务端内存,当大量请求进来,会耗尽内存,导致服务宕机 伪异步I/O的弊端分析===>当对Socket的输入流进行读取操作的时候,它会一直 ...

  4. pyCharm使用

    1.修改文件和代码模板 修改文件头 2.显示行号

  5. Android Studio 常用快捷键以及设置

    常用快捷键: Ctrl+Q 出现文档提示 跟ecplise的 鼠标悬浮差不多 Ctrl+Alt+t 包围代码 Home End 移动光标到文本首和文本尾 Alt+回车 导入当前包 Ctrl+Alt+O ...

  6. Awesome Python

    Awesome Python  A curated list of awesome Python frameworks, libraries, software and resources. Insp ...

  7. Nanopore sensors for nucleic acid analysis 论文阅读笔记

    Nanopore sensors for nucleic acid analysis Bala Murali Venkatesan and Rashid Bashir 用于核酸分析的纳米孔传感器 纳米 ...

  8. python tornado框架实现CRUD

    1.本例采用postgresql数据库,创建数据表 user_tbl ),signup_date date); 2.webapi接口 (1)tornado框架配置 t_tornado.py #-*- ...

  9. 怎么用ABBYY创建属于自己的PDF

    怎么创建一份属于自己的PDF文档呢?由于PDF格式文件具有跨平台.支持超长文件.安全可靠性高等诸多优势,在日常办公学习中应用越来越广泛.而随着技术的发展,各种办公软件也对PDF提供越来越多的支持,但P ...

  10. maxscript,执行选中代码片段

    选中一行或几行代码,然后按数字小键盘上的Enter键,即可单独运行之.此法方便调试.