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@@ -1,150 +0,0 @@
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-package org.example.join.model;
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-
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-import org.example.join.sql.SqlConstant;
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-
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-/**
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- * SQL 函数。
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- */
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-public class QueryMethod {
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-
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- /**
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- * 绝对值
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- */
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- public static QueryColumnFunction abs(Object obj) {
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- return new QueryColumnFunction(SqlConstant.ABS, obj);
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- }
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-
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- /**
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- * 平均值
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- */
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- public static QueryColumnFunction avg(Object obj) {
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- return new QueryColumnFunction(SqlConstant.AVG, obj);
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- }
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-
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- /**
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- * 数量
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- */
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- public static QueryColumnFunction count(Object obj) {
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- return new QueryColumnFunction(SqlConstant.COUNT, obj);
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- }
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-
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- /**
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- * 将字符串 s1,s2 等多个字符串合并为一个字符串。
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- */
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- public static QueryColumnFunction concat(Object... objs) {
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- return new QueryColumnFunction(SqlConstant.CONCAT, objs);
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- }
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-
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- /**
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- * 计算两个时间相差天数
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- */
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- public static QueryColumnFunction dateDiff(Object obj1, Object obj2) {
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- return new QueryColumnFunction(SqlConstant.DATEDIFF, obj1, obj2);
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- }
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-
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- /**
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- * 日期格式
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- */
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- public static QueryColumnFunction dateFormat(Object obj1, Object obj2) {
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- return new QueryColumnFunction(SqlConstant.DATE_FORMAT, obj1, obj2);
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- }
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-
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- /**
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- * 判断处理
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- */
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- public static QueryColumnFunction _if(Object obj1, Object obj2, Object obj3) {
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- return new QueryColumnFunction(SqlConstant.IF, obj1, obj2, obj3);
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- }
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-
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- /**
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- * 判断值是否为null
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- */
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- public static QueryColumnFunction ifNull(Object obj1, Object obj2) {
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- return new QueryColumnFunction(SqlConstant.IFNULL, obj1, obj2);
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- }
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-
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- /**
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- * 最大值
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- */
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- public static QueryColumnFunction max(IQueryColumn queryColumn) {
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- return new QueryColumnFunction(SqlConstant.MAX, queryColumn);
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- }
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-
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- /**
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- * 最小值
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- */
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- public static QueryColumnFunction min(IQueryColumn queryColumn) {
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- return new QueryColumnFunction(SqlConstant.MIN, queryColumn);
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- }
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-
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- /**
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- * 当前系统时间
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- */
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- public static QueryColumnFunction now() {
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- return new QueryColumnFunction(SqlConstant.NOW);
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- }
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-
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- /**
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- * 替换字符串
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- */
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- public static QueryColumnFunction replace(IQueryColumn queryColumn, Object obj1, Object obj2) {
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- return new QueryColumnFunction(SqlConstant.REPLACE, queryColumn, obj1, obj2);
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- }
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-
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- /**
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- * 四舍五入
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- */
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- public static QueryColumnFunction round(IQueryColumn queryColumn, Number number) {
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- return new QueryColumnFunction(SqlConstant.ROUND, queryColumn, number);
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- }
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-
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- /**
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- * 截取字符串
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- */
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- public static QueryColumnFunction substr(IQueryColumn queryColumn, int position) {
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- return new QueryColumnFunction(SqlConstant.SUBSTR, queryColumn, position);
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- }
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-
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- /**
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- * 截取字符串
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- */
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- public static QueryColumnFunction substr(IQueryColumn queryColumn, int position, int length) {
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- return new QueryColumnFunction(SqlConstant.SUBSTR, queryColumn, position, length);
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- }
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-
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- /**
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- * 获取字符个数
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- */
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- public static QueryColumnFunction length(Object obj) {
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- return new QueryColumnFunction(SqlConstant.LENGTH, obj);
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- }
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-
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- /**
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- * 获取年
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- */
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- public static QueryColumnFunction year(Object obj) {
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- return new QueryColumnFunction(SqlConstant.YEAR, obj);
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- }
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-
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- /**
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- * 获取月
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- */
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- public static QueryColumnFunction month(Object obj) {
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- return new QueryColumnFunction(SqlConstant.MONTH, obj);
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- }
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-
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- /**
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- * 获取日
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- */
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- public static QueryColumnFunction day(Object obj) {
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- return new QueryColumnFunction(SqlConstant.DAY, obj);
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- }
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-
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- /**
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- * 获取小时
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- */
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- public static QueryColumnFunction hour(Object obj) {
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- return new QueryColumnFunction(SqlConstant.HOUR, obj);
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- }
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-
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-}
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