CAST
Oracle中的数据类型转换函数CAST
将某种数据类型的表达式显式转换为另一种数据类型。CAST 语法
使用 CAST：
CAST ( expression AS data_type )
CAST(ytd_sales AS char(20))
常见的英文缩写CAST
=China Association for Science and Technology 中国科学技术协会（简称中国科协）
CAST
=Center for the Applications of Sciences and Technology 科学技术应用中心([美]Wayne大学)
CAST
=China Academy of Space Technology 中国空间技术研究院
CAST
=Computer Assisted SelfTeach
计算机辅助自学系统
CAST
=Cyclic Activated Sludge Technology
循环式活性污泥法（一种生活污水处理工艺，它是在SBR工艺的基础上，增加了选择器及污泥回流设施，并对时序做了一些调整，从而大大提高了SBR工艺的可靠性及效率。）
英文解释cast
cast1
(past and past participle cast)
[with obj., usu. with adverbial of direction]throw (something) forcefully in a specified direction
猛扔，掷，投，抛
they cast themselves off the cliff.
他们猛地跳下悬崖。
individuals who do not accept the norms are cast out from the group.
不接受标准的个人被群体摒弃。
■throw （something） so as to cause it to spread over an area
抛撒
the fishermen cast a large net around a school of tuna.
渔夫们朝一群金枪鱼撒了张大网。
he cast his net far and wide in search of evidence.
他全面撒网以搜寻证据。
■direct (one's eyes or a look) at something
将（视线，目光）投向
she cast down her eyes.
她垂下了双眼。
[with two objs]she cast him a desperate glance.
她绝望地瞥了他一眼。
■[with obj.]throw the hooked and baited end of (a fishing line) out into the water
抛鱼钩
■[with obj.] register （a vote）
登记（选票），投（票）
votes have been cast in 40 per cent of the seats.
对40%的席位投了票。
■[with obj.](Hunting)let loose （hounds） on a scent
(猎)放开（猎狗）以探寻嗅迹
■[no obj.](Hunting)(of a dog） search in different directions for a lost scent
(猎)（狗）四处探寻失踪的嗅迹
the dog cast furiously for the vanished rabbit.
这条狗疯狂寻找那消失的野兔嗅迹。
■[with obj.]let down (an anchor or sounding line)
抛锚；放测深索
■[with obj.]immobilize (an animal, especially a cow) by using a rope to cause it to fall on its side
用绳子绊倒（动物，尤指母牛）
[with obj. and adverbial of place]cause (light or shadow) to appear on a surface
投射（光，影）
the moon cast a pale light over the cottages.
苍白的月华洒落在农舍上。
running costs were already casting a shadow over the programme.
运转费已使该计划蒙上阴影。
■cause (uncertainty or disparagement) to be associated with something
把（怀疑，轻视）加诸
journalists cast doubt on the government's version of events.
新闻记者质疑政府对该事件的解释。
I do not wish to cast aspersions on your honesty.
我不想污蔑你的诚实。
■cause （a magic spell） to take effect
使（魔咒）生效，施法
the witch cast a spell on her to turn her into a beast.
巫婆施法，把她变成了野兽 。
the city casts a spell on the visitor.
这座城市把游客迷住了。
[with obj. and adverbial of direction]discard
抛弃
he jumped in, casting caution to the wind.
他跳了进去，把小心谨慎抛到了九霄云外。
■shed (skin or horns) in the process of growth
（生长过程中）蜕（皮）；脱（角）
the antlers are cast each year.
鹿角每年都要脱一次。
■(of a horse) lose (a shoe)
（马）失（蹄铁）
[with obj.]shape (metal or other material) by pouring it into a mould while molten
浇铸（金属等）
■make (a moulded object) in this way
铸造
a bell was cast for the church.
为教堂铸造了一口钟。
■arrange and present in a specified form or style
安排，表现
he issued statements cast in tones of reason.
他以理性的口吻发表声明。
■calculate and record details of (a horoscope)
用（星相）占卜
[no obj., usu. with adverbial of direction](in country dancing) change one's position by moving a certain number of places in a certain direction along the outside of the line in which one is dancing
（乡村舞蹈中的）转向（舞者沿外线移动位置）
noun名词
an object made by shaping molten metal or similar material in a mould
铸件，塑件
bronze casts of the sculpture.
雕塑的青铜铸件。
■(亦作 plaster cast)a mould used to make such an object
模子，模型
■(亦作 plaster cast)a bandage stiffened with plaster of Paris, moulded to the shape of a limb that is broken and used to support and protect it
（支撑或保护断肢的）石膏绷带
an act of throwing something forcefully
猛扔，掷，投，抛
he grabbed a spear for a third cast.
他抓住标枪，做第三次投掷。
■(archaic)a throw or a number thrown at dice
(古)掷骰子；掷骰的点数
■(Fishing)a throw of a fishing line
(渔)抛钓丝
■(Brit.)the leader of a fishing line
(英)接钩绳
[in sing.][with adj. or noun modifier]the form or appearance of something, especially someone's features
形状；外观，外貌
she had a somewhat masculine cast of countenance.
她的面容有些男相。
■the character of something
特性，特点
this question is for minds of a more philosophical cast than mine.
这个问题适合那些比我更具哲学头脑的人。
■the overall appearance of someone's skin or hair as determined by a tinge of a particular colour
（人的）肤色或发色
the colours he wore emphasized the olive cast of his skin.
他穿的衣服颜色突出了他橄榄色的皮肤。
a slight squint
轻度斜视
he had a cast in one eye.
他一只眼睛轻度斜视。
a convoluted mass of earth or sand ejected on to the surface by a burrowing worm
（钻洞的蠕虫排放到表面的）泥土堆，沙堆
■a pellet regurgitated by a hawk or owl
（鹰或猫头鹰的）颗粒状呕吐物
a search made by a hound or pack of hounds over a wide area to find a trail
（猎狗）探寻嗅迹
■(Austral./NZ)a wide sweep made by a sheepdog in mustering sheep
(澳/新西兰)（牧羊犬赶拢羊群时的）四周搜寻
常用词组
be cast in a – mould
be of the type specified
为某种类型
he was cast in a cautious mould.
他生性谨慎。
cast one's eyes over
have a quick appraising look at
快速查看
he was invited to cast his eyes over the exhibition.
他应邀粗略参观一下展览。
cast one's mind back
think back to a particular event or time
回顾，回忆
he cast his mind back to the fatal evening.
他回忆起那不幸的傍晚。
来自《新牛津英汉双解大词典》