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INSERT TO XS FROM ARRAY A INSERT INTO XS FROM ARRAY A INSET TO XS FROM A INSET IHTO XS FROM
生成一个按“学号”升序的临时表文件，将原来的XS. dbf文件覆盖 生成一个按“学号”降序的临时表文件，将原来的XS. dbf文件覆盖 不会生成新的排序文件，保持原数据表内容不变 系统提示出错信息
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CREATE TABLE XS1(XM C(8) ，XB C(2) ，XIMING C(18) ) CREATE CURSOR TABLE XS1(XM C(8) ，XB C(2) ，XIMING C(18) ) CREATE CURSOR XS1(XM C(8) ，XB C(2) ，XIMING C(18) ) CREATE TABLE CURSOR XS1(XM C(8) ，XB C(2) ，XIMING C(18) )
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DELETE RELATION DELETE RELATION xs TO cj SETREL ATION TO SETRELATION xs TO cj
生成一个按“学号”升序的临时表文件，将原来的XS.dbf文件覆盖 生成一个按“学号”降序的临时表文件，将原来的XS.dbf文件覆盖 不会生成新的排序文件，保持原数据表内容不变 系统提示出错信息
XS.DBF XS.FPT XS.TXT XS.DBC
XS.DBF XS.TXT XS.FPT XS.DBC
DELETE RELATION DELETE RELATION xs TO cj SETRELATION TO SET RELATION xs TO cj
INSERT TO XS FROM ARRAY A INSERT INT0 XS FRON ARRAY A INSERT TO XS FROM A INSERT INTO XS FROM
当更改了cj表中的XH字段值，将自动更改xs表中所有相关记录的XH字段值 当更改了xs表中的XH字段值，将自动更改cj表中所有相关记录的XH字段值 若xs表中的记录在cj表中有相关记录时，则禁止更改xs表中记录的XH字段的值 允许更改xs表中记录的XH字段的值，但不允许更改cj表中相关记录的XH字段的值
INSERT TO XS FROM ARRAY A INSERT INTO XS FROM ARRAY A INSERT TO XS FROM A INSERT INTO XS FROM
CREATE XS OPEN XS USE DATA XS USE XS
生成一个按“学号”升序的临时表文件，将原来的XS.dbf文件覆盖 生成一个按“学号”降序的临时表文件，将原来的XS.dbf文件覆盖 不会生成新的排序文件，保持原数据表内容不变 系统提示出错信息
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