first commit

2026-02-06 23:26:59 +08:00
parent 0f3f1467b8
commit 6cf8248b2d
34 changed files with 2348 additions and 0 deletions
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+DELIMITER //
+
+CREATE OR REPLACE PROCEDURE get_tableschema(
+  IN p_data NVARCHAR(100)
+)
+/*
+  Function   : 查詢檔案結構
+  description: 
+  build date : 2023/08/23
+  
+  Modify history
+    item who        date       modify docs
+    ==== ========== ========== ================================================
+    1    Michael    2023/08/23
+    2    Michael    2025/07/20 改寫為 MariaDB 並最佳化(ChatGPT+DeepSeek)
+    3    Assistant  2025/08/09 加入自動從information_schema讀取結構功能
+*/
+BEGIN
+  DECLARE v_count INT;
+  
+  -- 檢查gex_filestru是否有資料
+  SELECT COUNT(*) INTO v_count FROM gex_filestru;
+  
+  -- 如果沒資料, 就從information_schema讀取並寫入
+  IF v_count = 0 THEN
+    -- 先清空表(以防萬一)
+    TRUNCATE TABLE gex_filestru;
+    
+    -- 從information_schema讀取所有表結構並插入到gex_filestru
+    INSERT INTO gex_filestru (
+      Table_name, table_description, seqno, field_name, field_desc, 
+      field_type, field_len, field_dec, table_pk, table_index, 
+      field_isnull, field_default
+    )
+    SELECT 
+      t.TABLE_NAME AS Table_name,
+      '' AS table_description,  -- 初始為空，可手動補充
+      c.ORDINAL_POSITION AS seqno,
+      c.COLUMN_NAME AS field_name,
+      '' AS field_desc,  -- 初始為空，可手動補充
+      c.DATA_TYPE AS field_type,
+      -- c.CHARACTER_MAXIMUM_LENGTH AS field_len,
+	  case when c.CHARACTER_MAXIMUM_LENGTH > 9999 then 9999 else c.CHARACTER_MAXIMUM_LENGTH end AS field_len,
+      c.NUMERIC_SCALE AS field_dec,
+      IF(kcu.COLUMN_NAME IS NOT NULL, 'Y', 'N') AS table_pk,
+      'N' AS table_index,  -- 初始為N，可根據實際索引調整
+      IF(c.IS_NULLABLE = 'YES', 'Y', 'N') AS field_isnull,
+      c.COLUMN_DEFAULT AS field_default
+    FROM 
+      information_schema.TABLES t
+      JOIN information_schema.COLUMNS c ON t.TABLE_NAME = c.TABLE_NAME AND t.TABLE_SCHEMA = c.TABLE_SCHEMA
+      LEFT JOIN information_schema.KEY_COLUMN_USAGE kcu ON 
+        c.TABLE_NAME = kcu.TABLE_NAME AND 
+        c.COLUMN_NAME = kcu.COLUMN_NAME AND 
+        c.TABLE_SCHEMA = kcu.TABLE_SCHEMA AND
+        kcu.CONSTRAINT_NAME = 'PRIMARY'
+    WHERE 
+      t.TABLE_SCHEMA = DATABASE() AND
+      t.TABLE_TYPE = 'BASE TABLE';
+    
+    -- 更新表描述為表注釋(如果有)
+    UPDATE gex_filestru f
+    JOIN information_schema.TABLES t ON f.Table_name = t.TABLE_NAME
+    SET f.table_description = t.TABLE_COMMENT
+    WHERE t.TABLE_SCHEMA = DATABASE();
+    
+    -- 更新字段描述為列注釋(如果有)
+    UPDATE gex_filestru f
+    JOIN information_schema.COLUMNS c ON f.Table_name = c.TABLE_NAME AND f.field_name = c.COLUMN_NAME
+    SET f.field_desc = c.COLUMN_COMMENT
+    WHERE c.TABLE_SCHEMA = DATABASE();
+  END IF;
+  
+  -- 设置默认返回值
+  SELECT 0 AS code, 'ok' AS msg;
+  
+  -- 查询表结构
+  IF p_data = '*' THEN
+    SELECT
+      Table_name, table_description, seqno, field_name, field_desc, 
+      field_type, field_len, field_dec, table_pk, table_index, 
+      field_isnull, field_default
+    FROM gex_filestru
+    ORDER BY table_name, seqno;
+  ELSE
+    SELECT
+      Table_name, table_description, seqno, field_name, field_desc, 
+      field_type, field_len, field_dec, table_pk, table_index, 
+      field_isnull, field_default
+    FROM gex_filestru
+    WHERE table_name LIKE CONCAT('%', p_data, '%') 
+      OR table_description LIKE CONCAT('%', p_data, '%') 
+      OR field_name LIKE CONCAT('%', p_data, '%') 
+      OR field_desc LIKE CONCAT('%', p_data, '%')
+    ORDER BY table_name, seqno;
+  END IF;
+END //
+
+DELIMITER ;