TableName1 Specifies the name of the table to create. The TABLE and DBF options are identical. NAME LongTableName Specifies a long name for the table. A long table name can be specified only when a database is open because long table names are stored in databases. Long names can contain...
A database consists of one or more tables with several columns, each containing information. In relational databases, the tables can cross-reference one another. If you run a website and use MySQL, you may need to view a complete list of tables in the database. ...
MySqlCommand:执行一条sql语句。 MySqlDataReader: 包含sql语句执行的结果,并提供一个方法从结果中阅读一行。...MySqlHelper: Helper class that makes it easier to work with the provider. 1.添加动态链接库文件 方法一:Visual Studio...方法二:安装数据库MySQL时要选中Connector.NET 6.9的安装,将C:\Program ...
parameters in the following table to develop command-line scripts for installing a new instance of SQL Server. Expand SQL ServerDatabase Engine componentParameterDescription DatabaseEngine Setup Control /ACTIONRequired Required to indicate the installation workflow.Supportedvalues: Install. Data...
sqlprefix sqlterminator tab underline xmloptimizationcheck Starting and Leaving SQLcl Use the following commands to log in to and out of SQLcl. SQLCL [[option] [logon| / NOLOG] [start]] whereoptionhas the following syntax: -H[ELP] | -V[ERSION] | [ [-C[OMPATIBILITY]x.y[.z]]] ...
DISCARDspecifies a discard file (optional) to be created by SQL*Loader to store records that are neither inserted into a table nor rejected. A discard file filename specified on the command line becomes the discard file associated with the firstINFILEstatement in the control file. If the discar...
parameters in the following table to develop command-line scripts for installing a new instance of SQL Server. Expand SQL ServerDatabase Engine componentParameterDescription DatabaseEngine Setup Control /ACTIONRequired Required to indicate the installation workflow.Supportedvalues: Install. Da...
The INSERT SQL command has three syntaxes: Use the first syntax to insert specified values into the specified fields in the table. Use the second syntax to insert the contents of elements from an array, memory variables, or properties of an object that match the field names in the table. ...
SQL >SPOOL ON.SQL SQL >SELECT ‘ALTER VIEW ‘||TNAME||’ COMPILE;’ FROM TAB; SQL >SPOOL OFF 然后执行ON.SQL即可。 SQL >@ON.SQL 当然,授权和创建同义词也可以快速进行,如: SQL >SELECT ‘GRANT SELECT ON ’ ||TNAME||’ TO USERNAME;’ FROM TAB; SQL >SELECT ‘CREATE SYNONYM ‘||TNA...
The COPY command will be obsoleted in future releases of SQL*Plus. COPY supports the datatypes listed for the COPY command, but no new datatypes will be supported. COPY Command Syntax COPY {FROMdatabase| TOdatabase| FROMdatabaseTOdatabase} {APPEND|CREATE|INSERT|REPLACE}destination_table[(column...