Question

如何正确引用此字符串这个postgres sql语法在我的python脚本中使用psycopg2＆＃39; s cur.execute ("SELECT .. ")

Postgres sql：

SELECT 'ALTER TABLE RENAME ' || tablename || ' TO ' || 
  REGEXP_REPLACE ( tablename, '_foo$', '_bar' ) || ';'
FROM pg_tables
WHERE tablename LIKE '%_foo';

在我的python脚本中：

  cur.execute("SELECT 'ALTER TABLE RENAME ' || tablename || ' TO ' ||
                REGEXP_REPLACE ( tablename, '_foo$', '_bar' ) || ';'
                FROM pg_tables
                WHERE tablename LIKE '%_foo'")

Answer 1

只需添加换行符：

cur.execute("SELECT 'ALTER TABLE RENAME ' || tablename || ' TO ' || \
             REGEXP_REPLACE ( tablename, '_foo$', '_bar' ) || ';' \
             FROM pg_tables \
             WHERE tablename LIKE '%_foo'")

python - 如何正确引用sql字符串

1 个答案: