日韩三级在线_国产精品3区_亚洲精品a_成人网页_国产成人精品久久_国产精品国产精品国产专区不片

課程目錄:Oracle SQL Advanced培訓
4401 人關注
(78637/99817)
課程大綱:

   Oracle SQL Advanced培訓

 

 

 

Control user access
User Management
System permissions and object
Granting
Receiving permission
Roles
Using the links
Managing schema objects
ALTER TABLE command
Adding, modifying, and deleting columns
Add, remove, turn off constraintów
Create indexes
Flashback operations
External tables
Operations on large data sets
MERGE command
DML operations of podzapytaniami
DML operations with RETURNING clause
INSERT command multi tables
Conditional expressions
CASE expression
DECODE expression
Generate reports by grouping related data
The GROUP BY clause
The HAVING clause
Aggregating data - ROLLUP and CUBE operators
Identification summaries - GROUPING function
Aggregating data - GROUPING SETS operator
Managing data in different time zones
Time zones
Variations TIMESTAMP
Differences between DATE and TIMESTAMP
Conversion operations
Advanced subqueries
Subqueries
Multi-column subqueries
The subquery in the FROM clause
Correlated subqueries
WITH clause - re-use query blocks
Join tables
Inequality in the WHERE clause and the FROM clause
Semijoin
Antijoin
The processing of hierarchical data
The tree structure
hierarchical Queries
Pseudo column
Sort data in a hierarchical query
Useful functions
Regular expressions
Simple and complex patterns

主站蜘蛛池模板: 国产午夜高清一区二区不卡 | 欧美区国产区 | 亚洲精品影院久久久久久 | 国产精品亚洲欧美 | 国产高清视频免费 | 国产第一页精品 | 一区二区三区免费电影 | 国产精品一区91 | 曰韩欧美 | 日韩视频在线观看免费 | 成人欧美一区二区三区在线 | 日韩欧美电影在线观看 | 手机看片日韩欧美 | 国产中文在线观看 | 亚洲伊人久久综合一区二区 | 国产高清不卡一区二区三区 | 亚洲欧美一 | 国产1区2区在线观看 | 精品欧美在线观看 | 日本丶国产丶欧美色综合 | 欧美三级一区二区 | 国产欧美在线视频免费 | 国产欧美日韩视频 | 欧美视频精品一区二区三区 | 久久精品亚洲欧美日韩久久 | 亚洲图片欧美日韩 | 亚洲视频在线观看视频 | 精品国产欧美一区二区五十路 | 国产成人精品一区二三区在线观看 | 欧美xx在线 | 欧美在线视频一区在线观看 | 国产91一区二这在线播放 | 日韩欧美国产电影 | 亚洲欧美日韩高清 | 久久91精品国产91 | 日韩一区三区 | 欧美 日韩 亚洲另类专区 | 国产成人精品一区二区视频 | 日韩免费视频在线观看 | 2020年国产高中毛片在线视频 | 欧美十区|