diff --git a/docs/.vitepress/config.mts b/docs/.vitepress/config.mts
index dd8d10d..12615c9 100644
--- a/docs/.vitepress/config.mts
+++ b/docs/.vitepress/config.mts
@@ -16,6 +16,7 @@ export default defineConfig({
     nav: [
       { text: '首页', link: '/' },
       { text: 'PHP', link: '/php/' },
+      { text: '数据库', link: '/database/' },
       { text: 'Docker', link: '/docker/' },
       { text: 'Go', link: '/go/' },
       { text: '前端', link: '/frontend/' },
@@ -23,6 +24,12 @@ export default defineConfig({
     ],
     sidebar: [
       { text: '前言', link: '/start' },
+      {
+        text: '数据库',
+        items: [
+          { text: '编译安装Postgres和PostGIS', link: '/database/postgis' }
+        ]
+      },
       {
         text: 'Docker',
         items: [
diff --git a/docs/src/database/index.md b/docs/src/database/index.md
new file mode 100644
index 0000000..318ee9d
--- /dev/null
+++ b/docs/src/database/index.md
@@ -0,0 +1,3 @@
+# 数据库下关技术
+
+记录与数据及数据库相关的技术
diff --git a/docs/src/database/postgis.md b/docs/src/database/postgis.md
new file mode 100644
index 0000000..c9444cd
--- /dev/null
+++ b/docs/src/database/postgis.md
@@ -0,0 +1,301 @@
+# 编译源码安装Postgresql和PostGIS（17.4和3.5.2）
+
+> wandoubaba / 2025-04-23
+
+## 介绍
+
+Postgresql简称Postgres或者PG，是开源免费的关系型数据库，各方面指标都可以平替Mysql，甚至可以替代商业数据库产品。
+
+PostGIS是PG的一个可以支持地理信息数据的扩展。
+
+目前笔者刚开始学习GIS领域的知识，需要用到GIS数据库，由于对PG比较了解，所以就自然选择了PostGIS。
+
+## 环境
+
+学习任何技术都要先从环境开始，本来Docker已经很流行了，在hub.docker.com上也有PostGIS的官方镜像，但是为了学习，我决定先从编译安装开始，下面我将记录整个过程。
+
+本指南的环境如下：
+
+|环境项|版本|
+|---|---|
+|操作系统|Debian 12 Arm64|
+|Postgres|17.4|
+|PostGIS|3.5.2|
+
+## 安装
+
+### 创建postgres用户和组
+
+```sh
+sudo groupadd postgres
+sudo useradd -g postgres -m postgres
+```
+
+### 安装依赖
+
+```sh
+sudo apt-get install -y \
+    bzip2 \
+    build-essential \
+    git wget curl \
+    libicu-dev \
+    pkg-config \
+    bison \
+    flex \
+    libreadline-dev \
+    zlib1g-dev \
+    libsystemd-dev \
+    libxml2-utils
+```
+
+### 下载源码
+
+```sh
+curl -O https://ftp.postgresql.org/pub/source/v17.4/postgresql-17.4.tar.bz2
+curl -O https://postgis.net/stuff/postgis-3.5.2.tar.gz
+```
+
+### 编译安装Postgres
+
+#### 编译
+
+由于安装后我打算通过systemctl设置系统服务，所以加上`--with-systemd`参数
+
+```sh
+tar jxvf postgresql-17.4.tar.bz2
+cd postgresql-17.4
+./configure --with-systemd
+```
+
+#### 构建并安装
+
+```sh
+make all
+make install
+```
+
+#### 配置环境
+
+```sh
+echo 'export PATH=/usr/local/pgsql/bin:$PATH' >> /etc/profile.d/postgres.sh
+echo 'export LD_LIBRARY_PATH=/usr/local/pgsql/lib:$LD_LIBRARY_PATH' >>  /etc/profile.d/postgres.sh
+source /etc/profile.d/postgres.sh
+```
+
+这里可以验证一下
+
+```sh
+psql --version
+```
+
+应该可以看到结果
+
+```sh
+psql (PostgreSQL) 17.4
+```
+
+#### 初始化数据库
+
+```sh
+sudo mkdir -p /usr/local/pgsql/data
+sudo chown -R postgres:postgres /usr/local/pgsql/data
+sudo su - postgres -c 'initdb -D /usr/local/pgsql/data'
+```
+
+最后一句执行后应该可以看到类似下面的结果
+
+```sh
+su: warning: cannot change directory to /home/postgres: No such file or directory
+The files belonging to this database system will be owned by user "postgres".
+This user must also own the server process.
+
+The database cluster will be initialized with locale "en_US.UTF-8".
+The default database encoding has accordingly been set to "UTF8".
+The default text search configuration will be set to "english".
+
+Data page checksums are disabled.
+
+fixing permissions on existing directory /usr/local/pgsql/data ... ok
+creating subdirectories ... ok
+selecting dynamic shared memory implementation ... posix
+selecting default "max_connections" ... 100
+selecting default "shared_buffers" ... 128MB
+selecting default time zone ... Asia/Shanghai
+creating configuration files ... ok
+running bootstrap script ... ok
+performing post-bootstrap initialization ... ok
+syncing data to disk ... ok
+
+initdb: warning: enabling "trust" authentication for local connections
+initdb: hint: You can change this by editing pg_hba.conf or using the option -A, or --auth-local and --auth-host, the next time you run initdb.
+
+Success. You can now start the database server using:
+
+    pg_ctl -D /usr/local/pgsql/data -l logfile start
+
+```
+
+#### 首次启动postgres服务
+
+```sh
+sudo su - postgres -c 'pg_ctl -D /usr/local/pgsql/data -l /usr/local/pgsql/data/logfile start'
+```
+
+应该看到类似下面的消息
+
+```sh
+waiting for server to start.... done
+server started
+```
+
+#### 修改配置
+
+编辑`postgresql.conf`
+
+```ini
+# 监听IP地址设置为*表示允许其他主机连接
+listen_addresses = '*'
+# 端口号
+port = 5432
+```
+
+编辑`pg_hba.conf`，添加下面这一行表示信任来自本地局域网的连接（根据实际情况编写IP地址）
+
+```ini
+# IPv4 LAN connections:
+host	all		all		192.168.156.0/24	trust
+```
+
+#### 重启postgres服务
+
+```sh
+sudo su - postgres -c 'pg_ctl -D /usr/local/pgsql/data -l /usr/local/pgsql/data/logfile restart'
+```
+
+#### 配置systemd服务
+
+这个时候通过数据库客户端试着连接这个数据库服务，使用用户名`postgres`，密码空，默认数据库`postgres`，端口号`5432`，应该可以连接成功。
+
+接下来我们配置一下`systemd`系统服务：
+
+```sh
+vim /etc/systemd/system/postgres.service
+```
+
+编辑如下内容
+
+```ini
+[Unit]
+Description=PostgreSQL database server
+Documentation=man:postgres(1)
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=notify
+User=postgres
+ExecStart=/usr/local/pgsql/bin/postgres -D /usr/local/pgsql/data
+ExecReload=/bin/kill -HUP $MAINPID
+KillMode=mixed
+KillSignal=SIGINT
+TimeoutSec=infinity
+
+[Install]
+WantedBy=multi-user.target
+```
+
+然后让服务生效并实现开机自启
+
+```sh
+sudo su - postgres -c 'pg_ctl -D /usr/local/pgsql/data -l /usr/local/pgsql/data/logfile stop'
+sudo systemctl daemon-reload
+sudo systemctl enable postgres
+sudo systemctl start postgres
+```
+
+完成上面的操作，postgres服务已经安装完成，重启系统试一下，postgres服务应该可以开机自启。
+
+### 编译安装PostGIS扩展
+
+#### 安装依赖
+
+```sh
+apt-get install -y \
+    libxml2-dev \
+    libgeos-dev \
+    libproj-dev \
+    libprotobuf-c-dev \
+    protobuf-c-compiler \
+    libgdal-dev
+```
+
+#### 编译
+
+```sh
+tar zxvf postgis-3.5.2.tar.gz
+cd postgis-3.5.2
+./configure \
+  --prefix=/usr/local/pgsql \
+  --with-pgconfig=/usr/local/pgsql/bin/pg_config \
+  --with-geosconfig=/usr/bin/geos-config \
+  --with-proj \
+  --with-gdalconfig=/usr/bin/gdal-config \
+  --with-json-c
+```
+
+#### 构建并安装
+
+```sh
+make
+make install
+```
+
+#### 创建数据库并启用PostGIS扩展
+
+```sh
+sudo su - postgres -c 'createdb postgis_template'
+sudo su - postgres -c 'psql postgis_template -c "CREATE EXTENSION postgis;"'
+sudo su - postgres -c 'psql postgis_template -c "CREATE EXTENSION postgis_raster;"'
+sudo su - postgres -c 'psql postgis_template -c "CREATE EXTENSION postgis_topology;"
+```
+
+### 验证Postgres和PostGIS
+
+```sh
+sudo su - postgres -c 'psql -d postgis_template -c "SELECT postgis_full_version();"'
+```
+
+应该可以看到类似下面的结果
+
+```sh
+POSTGIS="3.5.2 dea6d0a" [EXTENSION] PGSQL="170" GEOS="3.11.1-CAPI-1.17.1" PROJ="9.1.1 NETWORK_ENABLED=OFF URL_ENDPOINT=https://cdn.proj.org USER_WRITABLE_DIRECTORY=/tmp/proj DATABASE_PATH=/usr/share/proj/pro
+j.db" (compiled against PROJ 9.1.1) GDAL="GDAL 3.6.2, released 2023/01/02" LIBXML="2.9.14" LIBJSON="0.16" LIBPROTOBUF="1.4.1" WAGYU="0.5.0 (Internal)" TOPOLOGY RASTER
+(1 row)
+```
+
+再试着进入psql命令行：
+
+```sh
+sudo su - postgres -c 'psql -d postgis_template;'
+```
+
+在psql命令行中执行下面的SQL：
+
+```sh
+SELECT ST_AsText(ST_GeomFromText('POINT(1 1)'));
+```
+
+应该能看到下面的结果
+
+```sh
+ st_astext
+------------
+ POINT(1 1)
+(1 row)
+```
+
+用`exit`命令可以退出psql命令行
+
+## 完成
+
+以上过程是本人边操作边记录的，结束后又在新的虚拟机上重现了一遍，所以可以保证成功。