{"id":814,"date":"2025-01-11T00:39:24","date_gmt":"2025-01-10T16:39:24","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=814"},"modified":"2025-01-11T00:39:24","modified_gmt":"2025-01-10T16:39:24","slug":"sql-server%e4%b8%ad%ef%bc%8c%e6%80%8e%e6%a0%b7%e5%af%b9%e5%b8%a6%e6%9c%89%e5%89%8d%e5%af%bc%e9%9b%b6%e7%9a%84%e6%95%b4%e6%95%b0%e6%a0%bc%e5%bc%8f%e5%8c%96","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/01\/11\/sql-server%e4%b8%ad%ef%bc%8c%e6%80%8e%e6%a0%b7%e5%af%b9%e5%b8%a6%e6%9c%89%e5%89%8d%e5%af%bc%e9%9b%b6%e7%9a%84%e6%95%b4%e6%95%b0%e6%a0%bc%e5%bc%8f%e5%8c%96\/","title":{"rendered":"SQL Server\u4e2d\uff0c\u600e\u6837\u5bf9\u5e26\u6709\u524d\u5bfc\u96f6\u7684\u6574\u6570\u683c\u5f0f\u5316"},"content":{"rendered":"\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u5728 SQL Server \u4e2d\uff0c\u5982\u679c\u4f60\u60f3\u8981\u683c\u5f0f\u5316\u5e26\u6709\u524d\u5bfc\u96f6\u7684\u6574\u6570\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>FORMAT<\/code> \u51fd\u6570\u3001<code>RIGHT<\/code> \u51fd\u6570\u6216\u8005 <code>CONVERT<\/code> \u51fd\u6570\u7ed3\u5408\u5b57\u7b26\u4e32\u5904\u7406\u6765\u5b9e\u73b0\u3002\u4e0b\u9762\u662f\u51e0\u79cd\u5e38\u89c1\u7684\u5904\u7406\u65b9\u5f0f\u3002<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">1. <strong>\u4f7f\u7528 <code>FORMAT<\/code> \u51fd\u6570<\/strong> (\u9002\u7528\u4e8e SQL Server 2012 \u53ca\u66f4\u9ad8\u7248\u672c)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code>FORMAT<\/code> \u51fd\u6570\u662f SQL Server 2012 \u53ca\u66f4\u9ad8\u7248\u672c\u63d0\u4f9b\u7684\u4e00\u79cd\u975e\u5e38\u7075\u6d3b\u7684\u51fd\u6570\uff0c\u53ef\u4ee5\u7528\u6765\u683c\u5f0f\u5316\u6570\u5b57\u3001\u65e5\u671f\u7b49\u6570\u636e\u7c7b\u578b\u3002\u8981\u683c\u5f0f\u5316\u5e26\u6709\u524d\u5bfc\u96f6\u7684\u6574\u6570\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>FORMAT<\/code> \u51fd\u6570\u5e76\u6307\u5b9a\u6240\u9700\u7684\u683c\u5f0f\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>SELECT FORMAT(5, '00000') AS FormattedValue;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8f93\u51fa<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>FormattedValue\n---------------\n00005<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c<code>00000<\/code> \u8868\u793a\u4f60\u60f3\u8981\u4e00\u4e2a\u603b\u5171\u6709 5 \u4f4d\u6570\u5b57\u7684\u8f93\u51fa\uff0c\u5982\u679c\u6570\u5b57\u4f4d\u6570\u4e0d\u8db3 5 \u4f4d\uff0c\u5219\u4f1a\u5728\u524d\u9762\u8865\u5145\u96f6\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. <strong>\u4f7f\u7528 <code>RIGHT<\/code> \u51fd\u6570<\/strong> (\u9002\u7528\u4e8e\u6240\u6709\u7248\u672c)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code>RIGHT<\/code> \u51fd\u6570\u53ef\u4ee5\u7528\u4e8e\u4ece\u53f3\u4fa7\u63d0\u53d6\u6307\u5b9a\u957f\u5ea6\u7684\u5b57\u7b26\u4e32\uff0c\u5e76\u53ef\u4ee5\u4e0e <code>REPLICATE<\/code> \u51fd\u6570\u7ed3\u5408\u4f7f\u7528\u6765\u6dfb\u52a0\u524d\u5bfc\u96f6\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>SELECT RIGHT(REPLICATE('0', 5) + CAST(5 AS VARCHAR(5)), 5) AS FormattedValue;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8f93\u51fa<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>FormattedValue\n---------------\n00005<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>REPLICATE('0', 5)<\/code> \u4f1a\u521b\u5efa\u4e00\u4e2a\u5305\u542b 5 \u4e2a\u96f6\u7684\u5b57\u7b26\u4e32\u3002<\/li>\n\n\n\n<li><code>CAST(5 AS VARCHAR(5))<\/code> \u5c06\u6574\u6570 5 \u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002<\/li>\n\n\n\n<li><code>RIGHT(..., 5)<\/code> \u63d0\u53d6\u53f3\u4fa7 5 \u4e2a\u5b57\u7b26\uff0c\u4ece\u800c\u786e\u4fdd\u6700\u7ec8\u7ed3\u679c\u662f\u4e00\u4e2a 5 \u4f4d\u6570\u7684\u5b57\u7b26\u4e32\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3. <strong>\u4f7f\u7528 <code>CONVERT<\/code> \u51fd\u6570<\/strong> (\u9002\u7528\u4e8e\u6240\u6709\u7248\u672c)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f60\u8fd8\u53ef\u4ee5\u4f7f\u7528 <code>CONVERT<\/code> \u51fd\u6570\u5c06\u6574\u6570\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff0c\u5e76\u5728\u5fc5\u8981\u65f6\u6dfb\u52a0\u524d\u5bfc\u96f6\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>SELECT RIGHT('00000' + CONVERT(VARCHAR(5), 5), 5) AS FormattedValue;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8f93\u51fa<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>FormattedValue\n---------------\n00005<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>'00000'<\/code> \u662f\u4e00\u4e2a\u9884\u5b9a\u4e49\u7684\u5305\u542b 5 \u4e2a\u96f6\u7684\u5b57\u7b26\u4e32\u3002<\/li>\n\n\n\n<li><code>CONVERT(VARCHAR(5), 5)<\/code> \u5c06\u6570\u5b57 5 \u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002<\/li>\n\n\n\n<li><code>RIGHT(..., 5)<\/code> \u786e\u4fdd\u7ed3\u679c\u662f 5 \u4f4d\u6570\uff0c\u5e76\u4e14\u5728\u6570\u5b57\u524d\u8865\u5145\u96f6\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">4. <strong>\u52a8\u6001\u683c\u5f0f\u5316\u6570\u5b57\u957f\u5ea6<\/strong> (\u9002\u7528\u4e8e\u52a8\u6001\u4f4d\u6570)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u4f60\u4e0d\u786e\u5b9a\u9700\u8981\u591a\u5c11\u4f4d\u6570\u5b57\uff0c\u5e76\u4e14\u8981\u52a8\u6001\u6dfb\u52a0\u524d\u5bfc\u96f6\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u7c7b\u4f3c\u7684\u65b9\u6cd5\u6765\u5904\u7406\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>DECLARE @Length INT = 7;\nSELECT RIGHT(REPLICATE('0', @Length) + CAST(123 AS VARCHAR(10)), @Length) AS FormattedValue;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8f93\u51fa<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>FormattedValue\n---------------\n0000123<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u4f60\u53ef\u4ee5\u901a\u8fc7\u8c03\u6574 <code>@Length<\/code> \u53d8\u91cf\u6765\u52a8\u6001\u6539\u53d8\u751f\u6210\u7684\u6570\u5b57\u4f4d\u6570\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. <strong>\u4f7f\u7528 <code>FORMAT<\/code> \u51fd\u6570\u4e0e\u81ea\u5b9a\u4e49\u683c\u5f0f\u5b57\u7b26\u4e32<\/strong> (\u9002\u7528\u4e8e SQL Server 2012 \u53ca\u66f4\u9ad8\u7248\u672c)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code>FORMAT<\/code> \u51fd\u6570\u5141\u8bb8\u4f7f\u7528\u81ea\u5b9a\u4e49\u6570\u5b57\u683c\u5f0f\u5b57\u7b26\u4e32\u6765\u5b9e\u73b0\u5e26\u6709\u524d\u5bfc\u96f6\u7684\u683c\u5f0f\u5316\u3002\u4f60\u53ef\u4ee5\u5728\u683c\u5f0f\u5b57\u7b26\u4e32\u4e2d\u6307\u5b9a\u6700\u5c0f\u5bbd\u5ea6\uff0c\u5e76\u4e14\u4e0d\u8db3\u4f4d\u6570\u7684\u90e8\u5206\u4f1a\u7528\u96f6\u586b\u5145\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>SELECT FORMAT(123, '000000') AS FormattedValue;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8f93\u51fa<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>FormattedValue\n---------------\n000123<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<code>000000<\/code> \u8868\u793a\u9700\u8981\u4e00\u4e2a\u81f3\u5c11 6 \u4f4d\u7684\u6570\u5b57\uff0c\u524d\u9762\u4e0d\u8db3\u7684\u90e8\u5206\u4f1a\u7528\u96f6\u586b\u5145\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">6. <strong>\u4f7f\u7528 <code>STUFF<\/code> \u51fd\u6570\u4e0e <code>REPLICATE<\/code> \u51fd\u6570<\/strong> (\u9002\u7528\u4e8e\u6240\u6709\u7248\u672c)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code>STUFF<\/code> \u51fd\u6570\u53ef\u4ee5\u7528\u6765\u66ff\u6362\u5b57\u7b26\u4e32\u7684\u4e00\u90e8\u5206\uff0c\u4f60\u53ef\u4ee5\u5c06\u524d\u5bfc\u96f6\u63d2\u5165\u5230\u6570\u5b57\u7684\u524d\u9762\uff0c\u76f4\u5230\u8fbe\u5230\u6240\u9700\u7684\u957f\u5ea6\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>SELECT STUFF(REPLICATE('0', 5) + CAST(45 AS VARCHAR(5)), 1, 0, '') AS FormattedValue;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8f93\u51fa<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>FormattedValue\n---------------\n00045<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>REPLICATE('0', 5)<\/code> \u521b\u5efa\u4e86\u4e00\u4e2a\u5305\u542b 5 \u4e2a\u96f6\u7684\u5b57\u7b26\u4e32\u3002<\/li>\n\n\n\n<li><code>CAST(45 AS VARCHAR(5))<\/code> \u5c06\u6570\u5b57 45 \u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002<\/li>\n\n\n\n<li><code>STUFF(..., 1, 0, '')<\/code> \u7528\u6765\u5728\u6570\u5b57\u524d\u63d2\u5165\u96f6\uff0c\u786e\u4fdd\u603b\u957f\u5ea6\u8fbe\u5230 5\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">7. <strong>\u4f7f\u7528 <code>CASE<\/code> \u8868\u8fbe\u5f0f\u52a8\u6001\u683c\u5f0f\u5316<\/strong> (\u9002\u7528\u4e8e\u6240\u6709\u7248\u672c)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u4f60\u60f3\u6839\u636e\u4e0d\u540c\u7684\u60c5\u51b5\u52a8\u6001\u5730\u8c03\u6574\u524d\u5bfc\u96f6\u7684\u6570\u91cf\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>CASE<\/code> \u8868\u8fbe\u5f0f\u6765\u6839\u636e\u4e0d\u540c\u6761\u4ef6\u5e94\u7528\u4e0d\u540c\u7684\u683c\u5f0f\u5316\u65b9\u5f0f\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>SELECT CASE \n            WHEN LEN(CAST(45 AS VARCHAR)) = 1 THEN '000' + CAST(45 AS VARCHAR)\n            WHEN LEN(CAST(45 AS VARCHAR)) = 2 THEN '00' + CAST(45 AS VARCHAR)\n            ELSE CAST(45 AS VARCHAR)\n        END AS FormattedValue;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8f93\u51fa<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>FormattedValue\n---------------\n00045<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u4e2a\u65b9\u6cd5\u5141\u8bb8\u4f60\u6839\u636e\u6570\u5b57\u7684\u957f\u5ea6\u52a8\u6001\u5730\u5728\u6570\u5b57\u524d\u6dfb\u52a0\u4e0d\u540c\u6570\u91cf\u7684\u96f6\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">8. <strong>\u4f7f\u7528 <code>RIGHT<\/code> \u51fd\u6570\u548c <code>REPLICATE<\/code> \u51fd\u6570\u7ed3\u5408<\/strong> (\u9002\u7528\u4e8e\u6240\u6709\u7248\u672c)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u7ed3\u5408 <code>REPLICATE<\/code> \u548c <code>RIGHT<\/code> \u51fd\u6570\uff0c\u4f60\u53ef\u4ee5\u66f4\u7075\u6d3b\u5730\u5904\u7406\u6570\u5b57\u683c\u5f0f\u5316\uff0c\u786e\u4fdd\u5f97\u5230\u6240\u9700\u7684\u957f\u5ea6\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>SELECT RIGHT(REPLICATE('0', 6) + CAST(7 AS VARCHAR(6)), 6) AS FormattedValue;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8f93\u51fa<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>FormattedValue\n---------------\n000007<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>REPLICATE('0', 6)<\/code> \u521b\u5efa\u4e86 6 \u4e2a\u96f6\u3002<\/li>\n\n\n\n<li><code>CAST(7 AS VARCHAR(6))<\/code> \u5c06\u6570\u5b57 7 \u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\u3002<\/li>\n\n\n\n<li><code>RIGHT(..., 6)<\/code> \u4ece\u53f3\u4fa7\u63d0\u53d6 6 \u4e2a\u5b57\u7b26\uff0c\u786e\u4fdd\u6700\u7ec8\u5b57\u7b26\u4e32\u957f\u5ea6\u4e3a 6\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">9. <strong>\u4f7f\u7528 <code>CONCAT<\/code> \u548c <code>REPLICATE<\/code> \u51fd\u6570<\/strong> (\u9002\u7528\u4e8e\u6240\u6709\u7248\u672c)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728 SQL Server 2012 \u53ca\u4ee5\u4e0a\u7248\u672c\uff0c<code>CONCAT<\/code> \u51fd\u6570\u53ef\u4ee5\u7528\u6765\u62fc\u63a5\u5b57\u7b26\u4e32\u3002\u4f60\u53ef\u4ee5\u7ed3\u5408 <code>REPLICATE<\/code> \u51fd\u6570\u6765\u5904\u7406\u524d\u5bfc\u96f6\u7684\u6dfb\u52a0\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u793a\u4f8b\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>SELECT CONCAT(REPLICATE('0', 5 - LEN(CAST(89 AS VARCHAR(5)))), CAST(89 AS VARCHAR(5))) AS FormattedValue;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u8f93\u51fa<\/strong>\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>FormattedValue\n---------------\n00089<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>REPLICATE('0', 5 - LEN(CAST(89 AS VARCHAR(5))))<\/code> \u6839\u636e\u6570\u5b57\u7684\u957f\u5ea6\u6765\u8ba1\u7b97\u9700\u8981\u6dfb\u52a0\u591a\u5c11\u4e2a\u96f6\u3002<\/li>\n\n\n\n<li><code>CONCAT<\/code> \u5c06\u8ba1\u7b97\u51fa\u6765\u7684\u96f6\u548c\u6570\u5b57\u62fc\u63a5\u8d77\u6765\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">10. <strong>\u4f7f\u7528 <code>FORMAT<\/code> \u51fd\u6570\u4e0e <code>PadLeft<\/code> \u65b9\u6cd5<\/strong> (\u9002\u7528\u4e8e C# \u548c SQL Server)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u4f60\u5728 C# \u4e2d\u901a\u8fc7\u4ee3\u7801\u5904\u7406 SQL \u6570\u636e\uff0c\u5e76\u5e0c\u671b\u5c06\u6570\u5b57\u683c\u5f0f\u5316\u4e3a\u5e26\u6709\u524d\u5bfc\u96f6\u7684\u5b57\u7b26\u4e32\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>PadLeft<\/code> \u65b9\u6cd5\u3002\u5728 SQL \u67e5\u8be2\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u5c06\u683c\u5f0f\u5316\u903b\u8f91\u4ea4\u7ed9\u5e94\u7528\u5c42\u6765\u7b80\u5316\u6570\u636e\u5e93\u67e5\u8be2\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">C# \u793a\u4f8b\uff1a<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>int num = 5;\nstring formatted = num.ToString().PadLeft(5, '0');\nConsole.WriteLine(formatted);  \/\/ \u8f93\u51fa 00005<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u867d\u7136\u8fd9\u79cd\u65b9\u6cd5\u4e0d\u662f\u76f4\u63a5\u5728 SQL Server \u4e2d\u4f7f\u7528\uff0c\u4f46\u5b83\u5728\u5e94\u7528\u5c42\u9762\u975e\u5e38\u6709\u6548\uff0c\u5c24\u5176\u662f\u5728\u5c06 SQL \u67e5\u8be2\u7ed3\u679c\u5904\u7406\u4e3a\u7528\u6237\u53cb\u597d\u7684\u8f93\u51fa\u65f6\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><code>FORMAT<\/code> \u51fd\u6570<\/strong> \u63d0\u4f9b\u4e86\u6700\u7b80\u5355\u4e14\u7075\u6d3b\u7684\u683c\u5f0f\u5316\u65b9\u6cd5\uff0c\u9002\u7528\u4e8e SQL Server 2012 \u53ca\u4ee5\u4e0a\u7248\u672c\u3002<\/li>\n\n\n\n<li><strong><code>RIGHT<\/code> \u548c <code>REPLICATE<\/code> \u51fd\u6570<\/strong> \u662f\u975e\u5e38\u901a\u7528\u7684\u65b9\u5f0f\uff0c\u9002\u7528\u4e8e\u6240\u6709\u7248\u672c\uff0c\u5e76\u4e14\u652f\u6301\u52a8\u6001\u957f\u5ea6\u7684\u5904\u7406\u3002<\/li>\n\n\n\n<li><strong><code>STUFF<\/code> \u51fd\u6570<\/strong> \u53ef\u4ee5\u7528\u4e8e\u66f4\u590d\u6742\u7684\u5b57\u7b26\u4e32\u63d2\u5165\u903b\u8f91\u3002<\/li>\n\n\n\n<li><strong><code>CASE<\/code> \u8868\u8fbe\u5f0f<\/strong> \u53ef\u7528\u4e8e\u52a8\u6001\u683c\u5f0f\u5316\uff0c\u5e76\u6839\u636e\u6570\u5b57\u7684\u5b9e\u9645\u957f\u5ea6\u6765\u51b3\u5b9a\u524d\u5bfc\u96f6\u7684\u6570\u91cf\u3002<\/li>\n\n\n\n<li><strong><code>CONCAT<\/code> \u51fd\u6570<\/strong> \u4e0e <code>REPLICATE<\/code> \u7ed3\u5408\uff0c\u4e5f\u63d0\u4f9b\u4e86\u7075\u6d3b\u7684\u5b57\u7b26\u4e32\u62fc\u63a5\u65b9\u5f0f\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u4e9b\u65b9\u6cd5\u90fd\u53ef\u4ee5\u6839\u636e\u4f60\u7684\u9700\u6c42\u8fdb\u884c\u8c03\u6574\u548c\u6269\u5c55\uff0c\u9009\u62e9\u6700\u9002\u5408\u7684\u65b9\u5f0f\u6765\u5904\u7406\u5e26\u6709\u524d\u5bfc\u96f6\u7684\u6574\u6570\u683c\u5f0f\u5316\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 SQL Server \u4e2d\uff0c\u5982\u679c\u4f60\u60f3\u8981\u683c\u5f0f\u5316\u5e26\u6709\u524d\u5bfc\u96f6\u7684\u6574\u6570\u503c\uff0c\u53ef\u4ee5\u4f7f\u7528 FORMAT \u51fd\u6570\u3001RIGHT \u51fd [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35],"tags":[],"class_list":["post-814","post","type-post","status-publish","format-standard","hentry","category-mysql"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/814","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/comments?post=814"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/814\/revisions"}],"predecessor-version":[{"id":815,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/814\/revisions\/815"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=814"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=814"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=814"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}