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set serveroutput on
--µ÷Óà    °ü           º¯Êý    ²ÎÊý
execute dbms_output.put_line('hello world');
--»òÕßÓÃcallµ÷Óã¬Ï൱ÓÚjavaÖеĵ÷ÊÔ³ÌÐò´ò×®
call dbms_output.put_line('hello world');
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begin
 dbms_output.put_line('Hello World');
 dbms_output.put_line('2*3='||(2*3));
 dbms_output.put_line('what''s');
end;
--ÈçºÎÉùÃ÷±äÁ¿£¬ËùÓбäÁ¿±ØÐëÔÙdeclareÖÐÉùÃ÷£¬³ÌÐòÖв»ÔÊÐíÉùÃ÷
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declare
 v_number1 number ;
 v_number2 number(3,2) ;
 v_number3 binary_integer :=1;
 v_name varchar2(20) :='kettas';
 v_date date :=sysda ......

SQL Server 2005 ²»ÔÊÐíÔ¶³ÌÁ¬½Ó½â¾ö·½·¨

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(1)¿ªÊ¼->³ÌÐò->Microsoft SQL Server 2005->SQL Server 2005ÍâΧӦÓÃÅäÖÃÆ÷,ÔÚ´ò¿ªµÄ½çÃæµ¥»÷"·þÎñµÄÁ¬½ÓµÄÍâΧӦÓÃÅäÖÃÆ÷",ÔÚ´ò¿ªµÄ½çÃæÖÐÕÒµ½Database Engine,µ¥»÷"·þÎñ",ÔÚÓÒ²à²é¿´ÊÇ·ñÒÑÆô¶¯,Èç¹ûûÓÐÆô¶¯¿Éµ¥»÷"Æô¶¯",²¢È·±£"Æô¶¯ÀàÐÍ"Ϊ×Ô¶¯,²»ÒªÎªÊÖ¶¯,·ñÔòÏ´οª»úʱÓÖÒªÊÖ¶¯Æô¶¯;
(2)¿É´ò¿ª:¿ªÊ¼->³ÌÐò->Microsoft SQL Server 2005->ÅäÖù¤¾ß->SQL Server Configuration Manager,Ñ¡ÖÐSQL Server 2005·þÎñÖÐSQL Server(MSSQLSERVER) ,²¢µ¥»÷¹¤¾ßÀ¸ÖеÄ"Æô¶¯·þÎñ"°´Å¥°Ñ·þÎñ״̬¸ÄΪÆô¶¯;
ʹÓÃÉÏÃæÁ½ÖÖ·½Ê½Ê±,ÓÐʱºòÔÚÆô¶¯µÄʱºò¿ÉÄÜ»á³öÏÖ´íÎó,²»ÄÜÆô¶¯,Õâʱ¾ÍÒª²é¿´"SQL Server ......

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<connectionStrings>
   <add name="ConnectionStr" connectionString="Data Source=CAIPENG-PC;database=Test;Integrated Security=SSPI" providerName="System.Data.SqlClient"/>
  </connectionStrings>
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<connectionStrings>
<add name="ConnectionStr" connectionString="Data Source=CAIPENG-PC;Initial Catalog=Test;Integrated Security=True" providerName="System.Data.SqlClient"/>
</connectionStrings>
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<connectionStrings>
      <add name="ConnectionStr" connectionString="Data Source=CAIPENG-PC;Initial Catalog=Test;uid=sa;pwd=caipeng" providerName="System.Data.SqlClient"/>
  </connectionStrings>
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string conn=System.Configuration.ConfigurationManager.ConnectionStrings["ConnectionStr"].ConnectionString; ......

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SELECT distinct RDB$OWNER_NAME AS DATABASE_OWNER
from RDB$RELATIONS
WHERE (RDB$SYSTEM_FLAG = 1);
--¸ù¾Ý±íÃûµÃµ½±íµÄÖ÷¼ü
SELECT RC.RDB$CONSTRAINT_NAME AS CONSTRAINT_NAME,
I.RDB$RELATION_NAME AS TABLE_NAME,
S.RDB$FIELD_NAME AS COLUMN_NAME
from RDB$RELATION_CONSTRAINTS RC
LEFT JOIN RDB$INDICES I ON
   (I.RDB$INDEX_NAME = RC.RDB$INDEX_NAME)
LEFT JOIN RDB$INDEX_SEGMENTS S ON
   (S.RDB$INDEX_NAME = I.RDB$INDEX_NAME)
WHERE (RC.RDB$CONSTRAINT_TYPE = 'PRIMARY KEY')
AND (I.RDB$RELATION_NAME = 'COUNTRY')
---¸ù¾Ý±íÃûµÃµ½ÆäÏà¹ØµÄÒÀÀµ.
SELECT RDB$DEPENDENT_NAME AS DEPENDENT_NAME,
RDB$DEPENDED_ON_NAME AS DEPENDS_ON,
RDB$FIELD_NAME AS FIELD_NAME,
RDB$DEPENDENT_TYPE DEPENDENT_TYPE,
   CASE
    WHEN RDB$DEPENDENT_TYPE = 0 THEN 'TABLE'
    WHEN RDB$DEPENDENT_TYPE = 1 THEN 'VIEW'
    WHEN RDB$DEPENDENT_TYPE = 2 THEN 'TRIGGER'
    WHEN RDB$DEPENDENT_TYPE = 3 THEN 'COMPU ......

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