pgsql invalid input syntax for integer: "" 错误信息含义 这个错误信息 "invalid input syntax for integer: """ 表示PostgreSQL在尝试将一个空字符串("")转换为整数类型时发生了语法错误。在PostgreSQL中,空字符串不是整数的有效表示,因此这种转换会失败。 可能导致该错误的原因
但这正在显示ERROR: invalid input syntax for integer: "{total_votes}" LINE 1: SELECT (select poll_result::json#>'{total_votes}'::integer +...Run Code Online (Sandbox Code Playgroud) poll_result 的数据如下{ "yes": 1, "no": 0, "total_votes": 1 } Run...
copyManager.copyIn("COPY " + tableName + " FROM STDIN with (" + "DELIMITER"+"'"+ delimiter + "'" + "ENCODING " + "'" + encoding + "')", fileInputStream); } finally { if (fileInputStream != null) { try { fileInputStream.close(); } catch (IOException e) { e.printStackT...
别的不说，先上代码 public class TestInteger { public static void main(final String[] args...
SELECT first_name, last_name, CASE department_id WHEN 10 THEN 'Administration' WHEN 20 THEN 20 WHEN 30 THEN 'Purchasing' ELSE 'Others' END AS department_name FROM employees; SQL 错误 [22P02]: ERROR: invalid input syntax for integer: "Others" Position: 183 简单CASE 表达式在进行计算的时候...