Visual FoxPro uses the default value if you use the SQL ALTER TABLEcommand to remove autoincrementing for the field.PRIMARY KEY | UNIQUE PRIMARY KEY creates a primary index for the field specified in FieldName1.
help--display helpmessages(DefaultFALSE)empty_lobs_are_null--setempty LOBs tonull(DefaultFALSE)defaults--direct pathdefaultvalue loading;EVALUATE_ONCE,EVALUATE_EVERY_ROW,IGNORE,IGNORE_UNSUPPORTED_EVALUATE_ONCE,IGNORE_UNSUPPORTED_EVALUATE_EVERY_ROWdirect_path_lock_wait--waitforaccess to table when currently...
Expand table Command-line optionSupported on WindowsSupported on Linux and macOS Login-related options -A Yes No -C Yes Yes -d db_name Yes Yes -D Yes Yes -l login_timeout Yes Yes -E Yes Yes -g Yes Yes -G Yes Yes -H workstation_name Yes Yes -j Yes Yes -K application_...
table in Section 1.0cn->ConnectionString ="Server=server;Database=northwind;UID=login;PWD=password;"; cn->Open();//Initialize the SqlDataAdapter object by specifying a Select command//that retrieves data from the sample tableda =newSqlDataAdapter("select * from CustTest order by CustId", cn)...
[SQL]USER>>SET commandprefix = "" dialect = IRIS displayfile = displaymode = currentdevice displaypath = displaytranslatetable = echo = on executemode = immediate log = off messages = on path = SQLUser selectmode = logical [SQL]USER>> 要显示单个配置参数的当前设置,请指定set param。例如,...
{// Skip past items that are not from the correct table.if(reader.LocalName.ToString() =="Production.Product") {this.listBox1.Items.Add(String.Format("{0}: {1:C}", reader["Name"], Convert.ToDecimal(reader["ListPrice"]))); } } DisplayStatus("Ready"); }privatevoidForm1_...
CREATE TABLE | DBFTableName1 Creates a table or .dbf. TheTableName1parameter specifies the name of the table. TheTABLEandDBFoptions are identical. NAMELongTableName Specifies a long name for the table. You can specify a long table name only when a database is open because long table names...
{// Skip past items that are not from the correct table.if(reader.LocalName.ToString() =="Production.Product") {this.listBox1.Items.Add(String.Format("{0}: {1:C}", reader["Name"], Convert.ToDecimal(reader["ListPrice"]))); } } DisplayStatus("Ready"); }privatevoidForm1_...
If display_width is 0, the output is truncated at 1 MB. You can use the :XML ON command to prevent truncation of the output. The :XML ON command is described later in this topic. Important Use the-y0option with extreme caution because it may cause serious performance issues on both the...
Note, the remote login specified in the DATABASE SCOPED CREDENTIAL used in theCREATE EXTERNAL TABLEcommand must haveReadpermission for the path/table/collection on the external data source specified in the LOCATION parameter. If you're planning to use this EXTERNAL TABLE to export data to a Hado...