values = [1, 2, 3, 4, 5] # 需要查询的值列表 # 使用f-string构建SQL查询语句 query = f"SELECT * FROM table_name WHERE column_name IN ({', '.join(['%s']*len(values))})" # 执行SQL查询 cursor.execute(query, values) results = cursor.f
INClob IParameterMetaData IPreparedStatement IRef IResultSet IResultSetMetaData IRowId ISavepoint ISQLData ISQLInput ISQLOutput ISQLXML IStatement IStruct IWrapper ParameterMetaData ResultSet ResultSetMetaData RowIdLifetime SQLClientInfoException
Valid values are greater than or equal to 0. Zero (0) in this field means no minimum connections are initially opened. Values that are greater thanMax Pool Sizegenerate an error. Multiple Active Result Sets -or- MultipleActiveResultSetsfalseWhentrue, an application can maintain multiple active...
That means their content will be joined in the string at the position they were added. This is a nice feature, because it saves some typing work, especially regarding concatenation operators. At the same time, however, it can be dangerous to use. First, let us look at the syntax. ...
The application would have to store the connection string in a variable in memory, which means that it would be contained within a full memory dump. View chapter Book 2013, Securing SQL Server (Second Edition)Denny Cherry Chapter Accessing Data Protecting Connection Strings Protecting your ...
All built-in string functions exceptFORMATare deterministic. This means they return the same value any time they are called with a specific set of input values. For more information about function determinism, seeDeterministic and Nondeterministic Functions. ...
You also have the option (but are not required) to pass in stringifyObject and timeZone, allowing you provide a custom means of turning objects into strings, as well as a location-specific/timezone-aware Date.This can be further combined with the SqlString.raw() helper to generate SQL ...
This means that if you pass an interpolated string to Dapper it will be converted as a plain string (so it would run as dynamic SQL, not as parameterized SQL), meaning it has the same issues as dynamic sql (see previous question). So it WOULD be possible (but ugly) to use Dapper wi...
Standard use of the thousand separator is specified if the format contains a thousand separator enclosed in digit placeholders (0 or #). Two adjacent thousand separators, or a thousand separator immediately to the left of the decimal separator (whether or not a decimal is specified), means "sca...
All built-in string functions are deterministic. This means they return the same value any time they are called with a specific set of input values. For more information about function determinism, see Deterministic and Nondeterministic Functions. When string functions are passed arguments that are ...