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lab_join.html
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<!DOCTYPE html>
<html lang="zh-cn">
<head>
<title>多表连接生成器 - Tools for SQL</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<link href="https://fonts.googleapis.com/css?family=Montserrat:300,400,700" rel="stylesheet">
<link rel="stylesheet" href="fonts/icomoon/style.css">
<link rel="stylesheet" href="css/bootstrap.min.css">
<link rel="stylesheet" href="css/jquery-ui.css">
<link rel="stylesheet" href="css/owl.carousel.min.css">
<link rel="stylesheet" href="css/owl.theme.default.min.css">
<link rel="stylesheet" href="css/owl.theme.default.min.css">
<link rel="stylesheet" href="css/jquery.fancybox.min.css">
<link rel="stylesheet" href="css/bootstrap-datepicker.css">
<link rel="stylesheet" href="fonts/flaticon/font/flaticon.css">
<link rel="stylesheet" href="css/aos.css">
<link rel="stylesheet" href="css/style.css">
<link rel="icon" href="case_when.ico">
</head>
<body data-spy="scroll" data-target=".site-navbar-target" data-offset="300">
<div class="site-wrap" id="home-section">
<div class="site-mobile-menu site-navbar-target">
<div class="site-mobile-menu-header">
<div class="site-mobile-menu-close mt-3">
<span class="icon-close2 js-menu-toggle"></span>
</div>
</div>
<div class="site-mobile-menu-body"></div>
</div>
<div class="container d-none d-lg-block">
<div class="row">
<div class="col-12 text-center mb-4 mt-5">
<h1 class="mb-0 site-logo"><a href="index.html" class="text-black h2 mb-0">Tools for SQL<span class="text-primary">.</span> </a></h1>
</div>
</div>
</div>
<header class="site-navbar py-md-4 js-sticky-header site-navbar-target" role="banner">
<div class="container">
<div class="row align-items-center">
<div class="col-6 col-md-6 col-xl-2 d-block d-lg-none">
<h1 class="mb-0 site-logo"><a href="index.html" class="text-black h2 mb-0">Tools for SQL<span class="text-primary">.</span> </a></h1>
</div>
<div class="col-12 col-md-12 main-menu">
<nav class="site-navigation position-relative text-right" role="navigation">
<ul class="site-menu main-menu js-clone-nav mr-auto d-none d-lg-block">
<li><a class="nav-link" href="index.html">首页</a></li>
<li><a class="nav-link" href="case_when.html" data-toggle="tooltip" title="不想写case when的时候">快速 CASE WHEN</a></li>
<li><a class="nav-link" href="avoid_lose.html" data-toggle="tooltip" title="一次使用N张表" >疯狂JOIN</a></li>
<li><a class="nav-link" href="lab_date.html" data-toggle="tooltip" title="时间生成器" >最近N天</a></li>
<li><a class="nav-link" href="lab_join.html" data-toggle="tooltip" title="多表相似关联" style="color:#00d2b5">多表相似关联</a></li>
<li><a class="nav-link" href="beauty_sql.html" data-toggle="tooltip" title="SQL美化">SQL美化</a></li>
<li><a class="nav-link" href="lab.html" data-toggle="tooltip" title="sql实验室" >实验室</a></li>
<li><a class="nav-link" href="https://regex101.com/" data-toggle="tooltip" title="正则表达实验室" target="_blank">REGEX101</a></li>
</ul>
</nav>
</div>
<div class="col-6 col-md-6 d-inline-block d-lg-none ml-md-0" ><a href="#" class="site-menu-toggle js-menu-toggle text-black float-right"><span class="icon-menu h3"></span></a></div>
</div>
</div>
</header>
<div class="site-section bg-light" id="contact-section" style="padding-top:2em">
<div class="container">
<div class="py-5 text-center" style="margin-top: 45px;">
<p class="lead">多表连接生成器：适用于要用类似的字段关联n张表的情况！</p>
</div>
<div class="row">
<div class="col-md-6 order-md-1">
<form class="needs-validation" novalidate="">
<div class="row">
<div class="col-md-6 mb-2">
<label for="inputName">输入表名</label>
<input type="text" class="form-control rounded-0" id="inputName" placeholder="" value="">
</div>
<div class="col-md-6 mb-2">
<label for="outputName">要关联N张表</label>
<input type="text" class="form-control rounded-0" id="inputnum" placeholder="请输入数字n" value="" maxlength="3" onkeyup="this.value=this.value.replace(/\D/g,'')" >
</div>
<div class="col-md-12 mb-3">
<hr class="mb-3">
<label for="inputName">自定义表名</label>
<textarea class="form-control rounded-0" id="raw_text_input" rows="14" placeholder="如果是自定义表名(请不要填写上面两格)，请直接把每个表复制在这里，一行一个表（如图所示）： table_1 table_2 table_3 table_4 "></textarea>
</div>
<div class="col-md-8 mb-2">
<label for="inputName">输入需要关联的列名</label>
<input type="text" class="form-control rounded-0" id="join_col" placeholder="请按照空格分隔" value="">
</div>
<div class="col-md-4 mb-3">
<label for="outputName">关联方式</label>
<select class="custom-select" id="jw">
<option value=1>left</option>
<option value=2>inner</option>
<option value=3>right</option>
<option value=3>union all</option>
</select>
</div>
</div>
</form>
</div>
<div class="col-md-6 order-md-2 mb-4">
<textarea class="form-control rounded-0" id="textarea" rows="24" placeholder="预期效果： select * from table_1
left join table_2 on t1.col = t2.col
left join table_3 on t1.col = t3.col
left join table_4 on t1.col = t4.col"></textarea>
</div>
</div>
<button class="btn btn-primary btn-lg btn-block" id="button1" type="submit" onclick="generate();return false;">一键生成</button>
</div>
</div>
<div class="footer py-5 border-top text-center">
<div class="container">
<div class="row">
<div class="col-md-12">
<p class="mb-0">
<p class="mb-1">© 2018-2019 Clark Yu · <span><a href="update_log.html" data-toggle="tooltip" title="又有新的更新啦！" target="_blank" style='text-decoration:none;'>更新日志</a></span> · <span><a href="https://zhuanlan.zhihu.com/p/44502560" data-toggle="tooltip" title="提个意见！" target="_blank" style='text-decoration:none;'>给我留言</a></span> · <span id="busuanzi_container_site_pv">
本站总访问量<span id="busuanzi_value_site_pv"></span>次
</p>
</div>
<div class="col-md-12">
<img src="images/wechat.png" alt="Image" class = "wechat_img">
<p class="mb-1"><span style="color: #00d2b5;">微信</span>打赏，手有余香</p>
</div>
</div>
</div>
</div>
</div> <!-- .site-wrap -->
<script src="js/jquery-3.3.1.min.js"></script>
<script src="js/jquery-migrate-3.0.1.min.js"></script>
<script src="js/jquery-ui.js"></script>
<script src="js/popper.min.js"></script>
<script src="js/bootstrap.min.js"></script>
<script src="js/owl.carousel.min.js"></script>
<script src="js/jquery.stellar.min.js"></script>
<script src="js/jquery.countdown.min.js"></script>
<script src="js/bootstrap-datepicker.min.js"></script>
<script src="js/jquery.easing.1.3.js"></script>
<script src="js/aos.js"></script>
<script src="js/jquery.fancybox.min.js"></script>
<script src="js/jquery.sticky.js"></script>
<script async src="//busuanzi.ibruce.info/busuanzi/2.3/busuanzi.pure.mini.js"></script>
<script src="js/main.js"></script>
<script>
function generate() {
var text = '';
var raw_table = document.getElementById('inputName').value;
var raw_num = document.getElementById('inputnum').value;
var lg_table = raw_table.length;
// 自定义表格
var slf_table = document.getElementById('raw_text_input').value;
var table_list = slf_table.split("\n");
var lg_slf_table = table_list.length;
// 关联表名
var join_col = document.getElementById('join_col').value;
var join_col_list = join_col.split(" ");
var lg_join_col = join_col_list.length;
var join_way = $(`#jw option:selected`).text();
function regular_case(join_col_list,raw_num,raw_table,join_way)
{
if(join_way == 'union all'){
var text_total = ''
var join_info = '';
for (var j = 0; j < lg_join_col; j++)
{
join_info += `${join_col_list[j]}`;
if(j < lg_join_col - 1 ){
join_info += ' , ';
}
}
for (var i = 0; i < raw_num; i++){
text_total += `select ${join_info} from ${raw_table}_${i+1}`;
if(i < raw_num - 1 ){
text_total += `\n${join_way}\n`;
}
}
return text_total;
}else{
var text_total = `\nfrom ${raw_table}_1 t1\n`; //首表
// var text_total = `select\nfrom ${raw_table}_1 t1\n`; //首表
for (var i = 0; i < raw_num; i++)
{
var join_info = '';
for (var j = 0; j < lg_join_col; j++)
{
join_info += `t1.${join_col_list[j]} = t${i+2}.${join_col_list[j]}`;
if(j < lg_join_col - 1 ){
join_info += ' and ';
}
}
text_total += `${join_way} join ` + `${raw_table}_${i+2} t${i+2} on ` + join_info + `\n` ;
}
return text_total;
}
}
function irregular_case(table_list,lg_slf_table,join_way,join_col_list)
{
if(join_way == 'union all'){
var text_total = ''
var join_info = '';
for (var j = 0; j < lg_join_col; j++)
{
join_info += `${join_col_list[j]}`;
if(j < lg_join_col - 1 ){
join_info += ' , ';
}
}
for (var i = 0; i < lg_slf_table; i++){
text_total += `select ${join_info} from ${table_list[i]}`;
if(i < lg_slf_table - 1 ){
text_total += `\n${join_way}\n`;
}
}
return text_total;
}else{
// var text_total = `select\nfrom ${table_list[0]} t1\n`; //首表
var text_total = `\nfrom ${table_list[0]} t1\n`; //首表
console.log(lg_slf_table);
for (var i = 0; i < lg_slf_table-1; i++)
{
var join_info = '';
for (var j = 0; j < lg_join_col; j++)
{
join_info += `t1.${join_col_list[j]} = t${i+2}.${join_col_list[j]}`;
if(j < lg_join_col - 1 ){
join_info += ' and ';
}
}
text_total += `${join_way} join ` + `${table_list[i+1]} t${i+2} on ` + join_info + `\n` ;
}
return text_total;
}
}
var tObj = document.getElementById('textarea');
if(lg_table > 0 && raw_num > 0){
tObj.value = regular_case(join_col_list,raw_num,raw_table,join_way);
}else if(lg_slf_table >0){
tObj.value = irregular_case(table_list,lg_slf_table,join_way,join_col_list);
}else{
tObj.value = '请检查你的输入！'
}
}
$(function () {
$('[data-toggle="tooltip"]').tooltip()
})
</script>
</body>
</html>