注意，要检查TEMP数据库中是否存在表，必须使用sqlite_temp_master而不是sqlite_master:

SELECT name FROM sqlite_temp_master WHERE type='table' AND name='table_name';

class CPhoenixDatabase():
    def __init__(self, dbname):
        self.dbname = dbname
        self.conn = sqlite3.connect(dbname)

    def is_table(self, table_name):
        """ This method seems to be working now"""
        query = "SELECT name from sqlite_master WHERE type='table' AND name='{" + table_name + "}';"
        cursor = self.conn.execute(query)
        result = cursor.fetchone()
        if result == None:
            return False
        else:
            return True

注意:现在在我的Mac上使用Python 3.7.1

这是我使用的函数:

给定SQLDatabase Object = db

public boolean exists(String table) {
    try {
         db.query("SELECT * FROM " + table);
         return true;
    } catch (SQLException e) {
         return false;
    }
}

如果表存在，则返回1;如果表不存在，则返回0。

SELECT CASE WHEN tbl_name = "name" THEN 1 ELSE 0 END FROM sqlite_master WHERE tbl_name = "name" AND type = "table"

c++函数检查db和所有附加的数据库是否存在表和列(可选)。

bool exists(sqlite3 *db, string tbl, string col="1")
{
    sqlite3_stmt *stmt;
    bool b = sqlite3_prepare_v2(db, ("select "+col+" from "+tbl).c_str(),
    -1, &stmt, 0) == SQLITE_OK;
    sqlite3_finalize(stmt);
    return b;
}

编辑:最近发现了sqlite3_table_column_metadata函数。因此

bool exists(sqlite3* db,const char *tbl,const char *col=0)
{return sqlite3_table_column_metadata(db,0,tbl,col,0,0,0,0,0)==SQLITE_OK;}

SQLite表名不区分大小写，但是默认情况下比较是区分大小写的。为了在所有情况下都能正常工作，需要添加COLLATE NOCASE。

SELECT name FROM sqlite_master WHERE type='table' AND name='table_name' COLLATE NOCASE