Check for Null Value or Spaces check for the existence of multiple columns in a table Check for valid Ip address Check if amount is positive or negative Check If Column Is PRIMARY KEY Check if database exists? Check if Feb-29 is falling between start and end dates Check if file exists ...
它会发出一个SQLCODE -146错误,其中有%msg Error: 'nodate' is an invalid ODBC/JDBC Date value or Error: 'nodate' is an invalid DISPLAY Date value. 要在ODBC模式或Display模式下执行此语句,必须将该值转换为适当的数据类型:IFNULL(DOB,CAST('no...
will error if file does not exist, can be ignored Clear-Content -Path $bcpFile -ErrorAction SilentlyContinue; # Add data Add-Content -Path $bcpFile -Value '1,Anthony,Grosse,Yes,1980-02-23'; Add-Content -Path $bcpFile -Value '2,Alica,Fatnowna,No,1963-...
我们把它用<if>标签写到StudentMapper.xml文件中。 注意,如果对于字符串进行判空,我们的test属性可以写成【test="name != nullandname != ''"】(这里的并列条件用and连接,并且空串用单引号)或者写成【test="name != null && name != """】(&是“&”的转义字符,"是单引号“'”的转义字符) <?xml vers...
isNullable(选择列expr){ if (expr是数据库表的列) { if (列定义可以为NULL) return true; else return true; } else if (选择列是NULL) { return true; } else if (选择列是非NULL常量或是变量) { return false; } else if (选择列是组合表达式){ return 组合表达式的每个分项 的 or 结果; }else...
{7}')",userLogin,userPass,userNicename,userEmail,userStatus,displayName,userUrl,userActivationKey);cmd=newSqlCommand(sql,conn);cmd.ExecuteNonQuery();}finally{/// Regardless of whether there is an exception,/// we will dispose the resource.if(cmd!=null)cmd.Dispose();if(conn!=null)conn.Dis...
public Encrypt(String value) { this.value = value; } public String getValue() { return value; } public void setValue(String value) { this.value = value; } } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. ...
}elseif(value instanceofFunction) { columnName = ((Function) value).toString(); }else{// 增加对select 'aaa' from table; 的支持if(value !=null) { columnName = value.toString(); columnName = columnName.replace("'",""); columnName = columnName.replace("\"",""); ...
CREATEDATABASETestDatabase; GOUSETestDatabase;CREATETABLEdbo.myNulls ( PersonIDsmallintnotnull, FirstNamevarchar(25), LastNamevarchar(30), Kidsvarchar(13)DEFAULT'Default Value', BirthDatedate); 示例数据文件 使用记事本创建一个空文件D:\BCP\myNulls.bcp,并插入下面的数据。 请注意,在第三条记录(第...
publicstaticboolValiParms(string parms){if(parms==null){returnfalse;}Regex regex=newRegex("sp_",RegexOptions.IgnoreCase);Regex regex2=newRegex("'",RegexOptions.IgnoreCase);Regex regex3=newRegex("create ",RegexOptions.IgnoreCase);Regex regex4=newRegex("drop ",RegexOptions.IgnoreCase);Regex regex5=...