目录一、Create1.1单行数据+全列插入1.2多行数据+指定列插入1.3插入否则更新主键冲突1.4替换二、Retrieve2.1 select列2.2where条件2.3结果排序2.4筛选分页结果三、Update四、Delete4.1删除数据4.2截断表五、插入查询
目录一、空属性二、默认值三、列描述四、zerofill五、主键六、自增长七、唯一键八、外键九、练习总结一、空属性
i have stored the txtfile in the database.i need to show the txtfile when i clik the link. and this link has to be created dynamically.
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