Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

1.The SQL introuduction

Introducing Oracle Database 11g
List the features of Oracle Database 11g
Discuss the basic design, theoretical and physical aspects of a relational database
Categorize the different types of SQL statements
Describe the data set used by the course
Log onto the database using the SQL Developer environment
Save queries to files and use script files in SQL Developer
Retrieving Data Using the SQL SELECT Statement
List the capabilities of SQL SELECT statements
Generate a report of data from the output of a basic SELECT statement
Select All Columns
Select Specific Columns
Use Column Heading Defaults
Use Arithmetic Operators
Understand Operator Precedence
Learn the DESCRIBE command to display the table structure
Restricting and Sorting Data
Write queries that contain a WHERE clause to limit the output retrieved
List the comparison operators and logical operators that are used in a WHERE clause
Describe the rules of precedence for comparison and logical operators
Use character string literals in the WHERE clause
Write queries that contain an ORDER BY clause sort the output of a SELECT statement
Sort output in descending and ascending order
Using Single-Row Functions to Customize Output
Describe the differences between single row and multiple row functions
Manipulate strings with character function in the SELECT and WHERE clauses
Manipulate numbers with the ROUND, TRUNC and MOD functions
Perform arithmetic with date data
Manipulate dates with the date functions
Using Conversion Functions and Conditional Expressions
Describe implicit and explicit data type conversion
Use the TO_CHAR, TO_NUMBER, and TO_DATE conversion functions
Nest multiple functions
Apply the NVL, NULLIF, and COALESCE functions to data
Use conditional IF THEN ELSE logic in a SELECT statement
Reporting Aggregated Data Using the Group Functions
Use the aggregation functions in SELECT statements to produce meaningful reports
Create queries that


Ïà¹ØÎĵµ£º

sql´óÈ«³¬Ïêϸ

  SQL ÃüÁî
Õⲿ·Ö°üº¬ÄÇЩ PostgreSQL Ö§³ÖµÄ SQL ÃüÁîµÄÐÅÏ¢£®ÕâÀïµÄ "SQL" ¾ÍÊǸÃÓïÑÔͨ³£µÄº¬Ò壻 ÿÌõÃüÁîµÄÓë±ê×¼ÓйصļæÈÝÐÔµÄÐÅÏ¢¿ÉÒÔÔÚÏà¹ØµÄ²Î¿¼Ò³ÖÐÕÒµ½£®
Table of Contents
ABORT --  Í˳öµ±Ç°ÊÂÎñ
ALTER GROUP --  Ïò×éÖÐÔö¼ÓÓû§»ò´Ó×éÖÐɾ³ýÓû§ 
ALTER USER --  ¸Ä±äÊý¾ ......

SQLÓï¾ä¸´Ï°:insert,update,delete,select

 ×î½üÒ»Ö±ÔÚѧϰSQL serverµÄÄÚÈÝ¡£×òÌ쿼ÁËÒ»ÏÂÊÔ¡£¸Ð¾õÕæµÄÊDz»ÈÝÒ×°¡¡£ÌرðÊÇһЩ¸´ÔӵIJéѯ¡£¸ãµÃÎÒÍ·»èÄÔÕ͵ġ£²»¹ýÒ²ÊÇÓÉÓÚ×Ô¼ºµÄ֪ʶÕÆÎյĻ¹²»¹»Ôúʵ°¡¡£ËùÒÔ½ñÌ츴ϰÁËÒ»ÏÂT-SQlÓï¾äµÄÔöɾ¸Ä²é¡£·¢ÏÖµÄÈ·ÊÇÓкܶ඼Íü¼ÇÁË¡£ÏÖÔڰѽá¹ûд³öÀ´¡£ÒÔºó¿É²»ÒªÍüÁËѽ¡£
--SQLÓï¾ä¸´Ï° --Ò»,²åÈëinsertÓï¾ä --1,ins ......

SQLÖÐCASEʹÓÃ

 ½ñÌìÔÚÏîÄ¿ÖÐÓÐÒ»ÎÊÌ⣬ÔÚÍøÉϲéѯÁËcaseµÄÓ÷¨£¬Ìû³öÀ´ºÍ´ó¼Ò·ÖÏíÏ¡£
 ÎÊÌâÃèÊö£ºÔÚÒ»ÕűíÖÐÓÐÒ»×Ö¶ÎbitÀàÐÍ£¬±íʾ´ËÌõÊý¾ÝÊÇ·ñ±»Ëø¶¨£¬ÔÚÒ³ÃæÉÏÓÐÒ»°´Å¥ÊǶԴËÌõÊý¾Ý½øÐÐËø¶¨ºÍ½âËøµÄ£¬Ñ¡ÔñÒ³ÃæÖеÄÊý¾Ý£¬µã»÷Õâ¸ö°´Å¥£¬Èç¹ûÕâÌõÊý¾ÝÊÇËø¶¨µÄ£¬¾Í½âËø£»Èç¹ûÊÇδ˵¶¨µÄ¾ÍËø¶¨£¬ÕâÑù¾ÍÓÃÒ»ÌõÓï¾äÀ´ÊµÏÖ¡£ºóÀ´Ï ......

DB2ÁÙʱ±íÔÚSQL¹ý³Ì

 
°æȨÉùÃ÷£ºÔ­´´×÷Æ·£¬ÈçÐèתÔØ£¬ÇëÓë×÷ÕßÁªÏµ¡£·ñÔò½«×·¾¿·¨ÂÉÔðÈΡ£
DB2ÁÙʱ±íÔÚSQL¹ý³ÌºÍSQLÓï¾äÖеIJâÊÔ×ܽá
 
²âÊÔÄ¿±ê£º
 
·Ö±ðÔÚSQL¹ý³ÌºÍSQLÓï¾äÖд´½¨ÁÙʱ±í£¬²¢²åÈëÊý¾Ý£¬¿´Ö´Ðнá¹ûÓÐʲôÒìͬ¡£
 
²âÊÔ»·¾³£º
 
DB2 UDB V9.1
 
Ö´Ðи½¼þÀïÃæµÄSQLÓï¾ä£¬µÃµ½Ò»¸ö±í¡ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ