Question

下午

我有一个选择陈述

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:weightSum="4"
    tools:context="com.PinchZoom.pinchzoomexampletwo.MainActivity" >

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="3dp"
        android:layout_weight="0.5"
        android:gravity="center_vertical"
        android:orientation="horizontal" >

        <ImageView
            android:id="@+id/img_back"
            android:layout_width="35dp"
            android:layout_height="35dp"
            android:contentDescription="@string/img_back_description"
            android:src="@drawable/back_icon"
            android:textStyle="bold" />

        <TextView
            android:id="@+id/txt_app_name"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:gravity="center_horizontal"
            android:text="@string/txt_app_name"
            android:textSize="35px"
            android:textStyle="bold" />

        <ImageView
            android:id="@+id/img_menu"
            android:layout_width="35dp"
            android:layout_height="35dp"
            android:contentDescription="@string/img_menu_description"
            android:src="@drawable/menu_icon" />
    </LinearLayout>

    <RelativeLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="3"
        android:background="@drawable/linear_layout_square"
        android:gravity="center" >

        <com.PinchZoom.pinchzoomexampletwo.TouchImageView
            android:id="@+id/img_to_be_zoomed"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/img" >
        </com.PinchZoom.pinchzoomexampletwo.TouchImageView>

        <com.PinchZoom.pinchzoomexampletwo.TouchImageView
            android:id="@+id/img_to_be_zoomed_mirror"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/img" >
        </com.PinchZoom.pinchzoomexampletwo.TouchImageView>
    </RelativeLayout>

    <LinearLayout
        android:id="@+id/layout_bottom_hscrolling"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_marginBottom="1dp"
        android:layout_weight="0.5"
        android:gravity="bottom"
        android:orientation="horizontal" >

        <com.devsmart.android.ui.HorizontalListView
            android:id="@+id/horizontal_list_view"
            android:layout_width="fill_parent"
            android:layout_height="40dp"
            android:background="#ddd" >
        </com.devsmart.android.ui.HorizontalListView>
    </LinearLayout>

    <LinearLayout
        android:id="@+id/layout_bottom_hscrolling_first"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="0.5"
        android:gravity="bottom"
        android:orientation="horizontal"
        android:visibility="gone" >

        <com.devsmart.android.ui.HorizontalListView
            android:id="@+id/horizontal_list_view_first"
            android:layout_width="fill_parent"
            android:layout_height="40dp"
            android:background="#ddd" >
        </com.devsmart.android.ui.HorizontalListView>
    </LinearLayout>

    <LinearLayout
        android:id="@+id/layout_bottom_hscrolling_second"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="0.5"
        android:gravity="bottom"
        android:orientation="horizontal"
        android:visibility="gone" >

        <com.devsmart.android.ui.HorizontalListView
            android:id="@+id/horizontal_list_view_second"
            android:layout_width="fill_parent"
            android:layout_height="40dp"
            android:background="#ddd" >
        </com.devsmart.android.ui.HorizontalListView>
    </LinearLayout>

    <LinearLayout
        android:id="@+id/layout_bottom_hscrolling_third"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="0.5"
        android:gravity="bottom"
        android:orientation="horizontal"
        android:visibility="gone" >

        <com.devsmart.android.ui.HorizontalListView
            android:id="@+id/horizontal_list_view_third"
            android:layout_width="fill_parent"
            android:layout_height="40dp"
            android:background="#ddd" >
        </com.devsmart.android.ui.HorizontalListView>
    </LinearLayout>

    <LinearLayout
        android:id="@+id/layout_bottom_hscrolling_fourth"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_weight="0.5"
        android:gravity="bottom"
        android:orientation="horizontal"
        android:visibility="gone" >

        <com.devsmart.android.ui.HorizontalListView
            android:id="@+id/horizontal_list_view_fourth"
            android:layout_width="fill_parent"
            android:layout_height="40dp"
            android:background="#ddd" >
        </com.devsmart.android.ui.HorizontalListView>
    </LinearLayout>

</LinearLayout>

我希望只在SIC_SupplierProductCode表上选择，如果SIC_ProductDetails选项卡中没有值forund

这是否意味着使用案例，因为我要回到太多行。那是因为我认为OR语句。我只是不知道如何写它。

我不知道如何编写IF语句

Answer 1

您可能还需要一个OR条件

的括号

SELECT 1
FROM   SIC_ProductDetails p
WHERE  p.SIC_IdSupportedInitiative = 61
       AND ( p.SIC_SupplierProductCode = sc.[Product Code] --here
              OR p.SIC_SupplierProductCode = (SELECT sp.SIC_SupplierProductCode
                                              FROM   SIC_SupplierProducts sp
                                              WHERE  sp.SIC_IdSupplier = 6
                                                     AND sp.SIC_SupplierProductCode = sc.[Product Code]) ) --here

Answer 2

你可以尝试这个查询

  SELECT 
    sc.[Actual Posting Date],
    sc.[Product Code]
  FROM SalesCurrent sc
  INNER JOIN SIC_ProductDetails p ON p.SIC_SupplierProductCode = sc.[Product Code] AND p.SIC_IdSupportedInitiative = 61
  INNER JOIN SIC_SupplierProducts sp ON sp.SIC_SupplierProductCode = sc.[Product Code] AND sp.SIC_IdSupplier = 6
  WHERE sc.[Customer Account] = 'BLUF008' AND sc.[Accounting Branch] = 117

SQL语句在OR语句中返回太多行

2 个答案: