init: 初始化 XiaowenBlog 博客项目，添加配置文件及技术文章

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+---
+title: SQL Server
+date: 2022-11-26 14:48:31
+author: 文永达
+top_img: https://gcore.jsdelivr.net/gh/volantis-x/cdn-wallpaper/abstract/B951AE18-D431-417F-B3FE-A382403FF21B.jpeg
+---
+
+# SQL Server
+
+## 建库字符集问题
+
+```sql
+ALTER DATABASE ACT_DEV SET SINGLE_USER WITH ROLLBACK IMMEDIATE;
+
+ALTER DATABASE ACT_DEV  COLLATE Chinese_PRC_CI_AS;
+
+ALTER DATABASE ACT_DEV SET MULTI_USER;
+```
+
+## 精度标度
+
+精度指数字的位数，标度指小数点后的位数。例如，123.45，精度是5，标度是2，decimal(5, 2)
+