If so, it is “ expanded” into the individual connection parameters extracted from the string. When expand_dbname is non-zero, the value for the first dbname key word is checked to see if it is a connection string.
Also, if the values entry associated with a non- NULL keywords entry is NULL or an empty string, that entry is ignored and processing continues with the next pair of array entries. Processing will stop at the first NULL entry in the keywords array. The passed arrays can be empty to use all default parameters, or can contain one or more parameter settings. The currently recognized parameter key words are listed in Section 33.1.2. Unlike PQsetdbLogin below, the parameter set can be extended without changing the function signature, so use of this function (or its nonblocking analogs PQconnectStartParams and PQconnectPoll) is preferred for new application programming. The second, values, gives the value for each key word. The first, keywords, is defined as an array of strings, each one being a key word. This function opens a new database connection using the parameters taken from two NULL-terminated arrays. PGconn *PQconnectdbParams(const char * const *keywords, For example, hostname\lab-sql, 1440.Makes a new connection to the database server. If you disable the SQL Server Browser service, you will have to specify the TCP port manually. SQL Server Browser gets the current dynamic port number of an instance from the registry and sends it to a client. SQL Server Browser appeared in SQL Server 2005 and was used as an intermediary service to distribute connections between multiple MSSQL instances installed on the same computer.Īlso, SQL Server Browser is responsible for connection to MSSQL (for example, from SQL Server Management Studio) without specifying a port number ( hostname\lab-sql). This feature appeared in newer MSSQL versions.
SQL Server Browser Service: TCP and UDP Portsīefore MSSQL 2000 you could not install more than one SQL instance on a host. You won’t be able to connect without specifying the listening port because the SQL Browser service is disabled. The connection string format is as follows: Make sure you can connect to your SQL instance using SSMS over the new fixed TCP port. Here you can configure different TCP ports for a local and an external connection address, or different ports for different external addresses (if your server has multiple network interfaces in different segments, for example then using VLANs or multiple IP aliases). On the IP Addresses tab, you can see the list of all IP addresses of the computer (including IPv6 and local ones) and their settings. If the value of Listen All is No, the IPAll section is ignored Listen All is an unobvious setting responsible for the contents of the IPAll section in the IP Addresses tab.
Do not change the parameter without a need Keep Alive how often to send keep-alive packets to make sure the connection is still available (in milliseconds).Enabled – to make sure that the TCP/IP protocol is enabled.There are only 3 parameters on the Protocol tab:: TCP/IP is where MSSQL network options are configured.But its use doesn’t give us much benefit, so we will leave it enabled.
Named Pipes may be used over the TCP/IP protocol.The Shared Memory protocol is used to connect from a local computer (the one an MSSQL instance is installed on).The list of available protocols for an instance contains the following: In my case, there is only 1 MSSQL instance running on the server, so I will configure listening ports for it.