.net下调用sqlserver2k存储过程

.net下调用sqlserver2k存储过程

首先,在sqlserver中创建存储过程,在调用时分为有参数和没有参数两种情况,先就简单的没有参数的情况简要的介绍:

  假设存储过程如下: create proc selectall

  as

  select * from studentinf

  则此sp的调用如下:

  sqlcommand selectcmd = new sqlcommand(“selectall”, conn);

  //conn 为sqlconnection

  selectcmd.commandtype = commandtype.storedprocedure;

  如果需要将结果集加到某个dataadapter上,则可如下:

  sqldataadapter studa = new sqldataadapter();

  studa.selectcommand = selectcmd;

  如果有参数:create proc andselect

  @studentid varchar(10),

  @studentname varchar(10),

  as

  select * from studentinf where studentid = @studentid and studentname = @studentname

  则参数可以如下添加:

  selectcmd.parameters.add(“@studentid”, sqldbtype.nvarchar, 10);

  selectcmd.parameters.add(“@studentname”, sqldbtype.nvarchar, 10);

  如果只有一个参数,也可以这样赋值:

  sqlparameters onepara = selectcmd.parameters.add(“@studentid”, sqldbtype.nvarchar, 10);

  onepara.value = “ a string ”

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