first commit

2026-02-06 14:31:07 +08:00
commit e7f672ddff
13 changed files with 1604 additions and 0 deletions
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+DELIMITER $$
+
+CREATE OR REPLACE PROCEDURE usp_parsejson (
+  IN _uuid VARCHAR(100),
+  IN _json TEXT
+)
+/*
+  CALL usp_parsejson('1234', '{ "id":"abc", "nmae": "Michael"}');
+  SELECT * from _jsondata WHERE guid = '1234';
+  
+  DELETE FROM _jsondata WHERE guid = '1234';
+*/
+BEGIN
+  DECLARE _json_clean TEXT;
+  DECLARE _pair TEXT;
+  DECLARE _key VARCHAR(255);
+  DECLARE _value TEXT;
+  DECLARE _valuetype VARCHAR(20);
+  DECLARE _pos INT DEFAULT 1;
+  DECLARE _len INT;
+  DECLARE _curr INT DEFAULT 1;
+  DECLARE _next INT;
+  DECLARE _cnt INT DEFAULT 1;
+  
+  -- 建立暫存表
+  CREATE TEMPORARY TABLE IF NOT EXISTS _jsondata (
+    guid VARCHAR(100),
+    rowid INT,
+    fieldname VARCHAR(255),
+    contents TEXT,
+    fieldtype VARCHAR(20)
+  );
+
+  -- 清除左右大括號與空白
+  SET _json_clean = REPLACE(_json,'{','');
+  SET _json_clean = REPLACE(_json_clean,'}','');
+
+  -- 計算逗號數（也就是 key:value 數）
+  SET _len = LENGTH(_json_clean) - LENGTH(REPLACE(_json_clean, ',', '')) + 1;
+
+  WHILE _cnt <= _len DO
+    -- 取出第 cnt 個 key:value 配對
+    SET _pair = SUBSTRING_INDEX(SUBSTRING_INDEX(_json_clean, ',', _cnt), ',', -1);
+
+    -- 取出 key
+    SET _key = SUBSTRING_INDEX(_pair, ':', 1);
+    SET _key = REPLACE(TRIM(_key),'"','');
+	
+    -- 取出 value
+    SET _value = SUBSTRING_INDEX(_pair, ':', -1);
+    SET _value = TRIM(_value);
+
+    -- 判斷型別
+    IF LEFT(_value, 1) = '"' AND RIGHT(_value, 1) = '"' THEN
+      SET _valuetype = 'string';
+      SET _value = REPLACE(_value,'"','');
+    ELSE
+      SET _valuetype = 'number';
+    END IF;
+
+    -- 寫入結果
+    INSERT INTO _jsondata (guid, rowid, fieldname, contents, fieldtype)
+    VALUES (_uuid, _cnt, _key, _value, _valuetype);
+
+    -- 下一筆
+    SET _cnt = _cnt + 1;
+  END WHILE;
+END$$
+
+DELIMITER ;