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OleDbConnectioncon=newOleDbConnection(cnnstr);
try
{
con.Open();
}
catch
{}
OleDbCommandcmd=newOleDbCommand(strSQL,con);
System.Data.OleDb.OleDbDataReaderdr=cmd.ExecuteReader();
while(dr.Read())
 
{
stringdd=dr["gggg"].ToString();
byte[]ooo=(byte[])dr["hhhh"];
stringstr;
str=Sys ......

Oracle SQL PLUS µÇ¼ Æô¶¯ ¹Ø±Õ


Oracle SQL PLUS »ù±¾²Ù×÷1
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c:\>sqlplus "sys/test1234 as sysdba"  ÒÔsysdbaÉí·ÝµÇ¼
 
c:\>sqlplus/nolog   ÒÔnologÉí·ÝµÇ¼
sql> connect sys/test1234 as sysdba
Connected.
 
 
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declare
type name_arrary_type is varray(20) of varchar2(10);
name_arrary  name_arrary_type;
rowss int:=&ÊäÈëÒ³¼Ç¼Êý;
dpno int:=&ÊäÈ벿ÃźÅ;
v_count int:=0;
cursor  emp_cursor(dpno int) is select ename from emp where deptno=dpno; ......

Oracle Parameter

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¡¡¡¡string sql = "select * from table1 where name = '" + name + "'";
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¡¡¡¡1¡¢¸Ä³É£ºstring sql = "select * from table1 where name = '" + name.Replace("'","''") + "'"; // Ìæ»»Ò» ......
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