質問編集履歴
1
サンプルソースにConnectionのOpen()が抜けていたため追記しました。
title
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File without changes
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body
CHANGED
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@@ -20,10 +20,12 @@
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20
20
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{
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21
21
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using ( var con = new OracleConnection("接続文字列") )
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22
22
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{
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23
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+
con.Open();
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24
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+
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23
25
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var command = con.CreateCommand();
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24
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command.CommandText = "select * from XXX";
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25
27
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26
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-
var reader = command.ExecuteReader()
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28
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+
var reader = command.ExecuteReader();
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27
29
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28
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~略~
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29
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}
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