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2005-11-01

¡¦ [SQL]½ÅÊ£¥Ç¡¼¥¿¤ÎÃê½Ð¥¯¥¨¥ê

SELECT hoehoe,count(hoehoe) FROM T_hogehoge
GROUP BY hoehoe having (count(hoehoe) > 1)
ËÜÆü¤Î¥ê¥ó¥¯¸µ | 20 | 9 | 8 | 6 | 6 | 5 | 4 | 4 | 4 | 4 |

2005-11-02

¡¦ [SQL]ưŪSQLʸ¤Î¼Â¹ÔÊýË¡(SQL Server¡Ë

DECLARE @strSQL nvarchar(100)
SET @strSQL = N'SELECT * FROM ' + @strTableName
EXEC SP_EXECUTESQL @strSQL
ËÜÆü¤Î¥ê¥ó¥¯¸µ | 33 | 14 | 13 | 8 | 7 | 6 | 5 | 5 | 4 | 4 |

2005-11-08

¡¦ [SQL][C#]¹¹¿··Ï¥¹¥È¥¢¥É¥×¥í¥·¡¼¥¸¥ã¤Î¼Â¹Ô

private System.Data.SqlClient.SqlConnection DatabaseConnection;
¡¦¡¦¡¦
// DB¥³¥Í¥¯¥·¥ç¥ó¥ª¡¼¥×¥ó
if (DatabaseConnection.State == System.Data.ConnectionState.Closed)
DatabaseConnection.Open();
// SQL¥³¥Þ¥ó¥ÉÀ¸À®
SqlCommand cmd = new SqlCommand();
cmd.CommandType = System.Data.CommandType.StoredProcedure;
cmd.CommandText = "sp_calc_hoge";
cmd.Connection = this.DatabaseConnection;
cmd.CommandTimeout = 300;	// 5ʬ
// ¥Ñ¥é¥á¡¼¥¿ÀßÄê
cmd.Parameters.Add("@foo", SqlDbType.Float,8,"foo");
cmd.Parameters["@foo"].Value = fFoo;
// ¼Â¹Ô
nStatus = cmd.ExecuteNonQuery();
ËÜÆü¤Î¥ê¥ó¥¯¸µ | 21 | 9 | 6 | 6 | 4 | 4 | 4 | 3 | 3 | 3 |

2005-11-09

¡¦ [SQL][C#]SqlCommand.Parameters¤ËnullÃͤòÆþ¤ì¤ëÊýË¡

using System.Data.SqlClient;
using System.Data.SqlTypes;
¡¦¡¦¡¦
cmd.Parameters["@sHoge"].Value = SqlString.Null;
cmd.Parameters["@dHoge"].Value = SqlDateTime.Null;
cmd.Parameters["@nHoge"].Value = SqlInt32.Null;
cmd.Parameters["@bHoge"].Value = SqlBoolean.Null;
DataRow¤Î¾ì¹ç¤Ï°Ê²¼¤ÎÄ̤ꡣ
DataRow row;
¡¦¡¦¡¦
row["hoge"] = System.DBNull.Value;
ËÜÆü¤Î¥ê¥ó¥¯¸µ | 17 | 16 | 12 | 9 | 6 | 6 | 6 | 5 | 4 | 4 |

2005-11-15

¡¦ [SQL] INNER JOIN¤Î¥µ¥ó¥×¥ë

SELECT  T_Hoge.ID, T_Foo.sNo, T_Foo.sSalesCompanyName, T_Foo.nQuantity, 
        T_Hoge.sPurchaseKey, T_Foo.sAddress
FROM    T_Hoge INNER JOIN
        T_Foo ON T_Hoge.ID = T_Foo.ID
ËÜÆü¤Î¥ê¥ó¥¯¸µ | 13 | 10 | 4 | 3 | 2 | 2 | 2 | 1 | 1 | 1 |

2005-11-16

¡¦ [SQL] CASE WHEN ¤Î¥µ¥ó¥×¥ë

SELECT *, CASE WHEN T_Bar.CompanySectionID = '1' AND 
       sSalesCompanyID = '' THEN 0 ELSE 1 END AS CaseP1, 
       T_CompanySection.CompanySectionName + ' ' + T_Bar.sSalesCompanyName
       + ' ' + RTRIM(T_Bar.sDepartment) 
       + ' ' + RTRIM(T_Bar.sName) 
       + ' ' + RTRIM(T_Bar.sAddress) AS Info
FROM T_Bar INNER JOIN
    T_CompanySection ON 
    T_Bar.CompanySectionID = T_CompanySection.CompanySectionID
ORDER BY CaseP1, T_Bar.CompanySectionID, T_Bar.sSalesCompanyID
ËÜÆü¤Î¥ê¥ó¥¯¸µ | 14 | 13 | 10 | 9 | 4 | 3 | 3 | 3 | 3 | 3 |

2005-11-30

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ËÜÆü¤Î¥ê¥ó¥¯¸µ | 228 | 123 | 115 | 98 | 75 | 75 | 65 | 60 | 60 | 60 |