sql array variable

Grammar:identifier [CONSTANT] datatype [not NULL] [: = | DEFAULT Expr]Identifier: Used to specify the name of a variable or constant.CONSTANT: Used to specify constants. When you define a constant, you must specify its initial value, and its value

*sql optimization based on ORACLE11GR2 reading notes * Third, cursor in OracleThe cursor in Oracle is a vector of SQL parsing and execution in an Oracle database and is a data structure for C (Oracle is written in C).There are two types of cursor in

We don't have a lot of PHP information on hand, we have a php4gb.chm. I most appreciate the library part of it, the real online help. But the pace of PHP development is so fast, you sui, I recently found some extended array functions in

C # automatically extract the variable name with @ from SQL to obtain the generated sqlparameter array from the simple data object for data insertion // Automatically obtain the @ variable in SQL, generate the sqlparameter array, and obtain the

Variable introduction when writing a PL/SQL program, you can define variables and constants, including: 1 in a PL/SQL program, scalar type (scalar) 2), composite type (composite)--for manipulating a single record 3), reference type (reference)--

Oracle SQL * plus is a client tool that interacts with oracle. In SQL * plus, you can run the SQL * plus command and the SQL * plus statement. The DML, DDL, and DCL statements we usually call are SQL * plus statements. After they are executed, they

Oracle SQL * plus is a client tool that interacts with oracle. In SQL * plus, you can run the SQL * plus command and the SQL * plus statement. The DML, DDL, and DCL statements we usually call are SQL * plus statements. After they are executed,

First, Variable introductionWhen you write a PL/SQL program, you can define variables and constants, including the following in the PL/SQL program:1), scalar type (scalar)2), composite type (composite) --for manipulating individual records3),

Oracle Oracle's Sql*plus is a client tool that interacts with Oracle. In Sql*plus, you can run the Sql*plus command and the Sql*plus statement. Our usual DML, DDL, and DCL statements are sql*plus statements that, when executed, can be stored in an

SQL * Plus command (1) Introduction: Oracle SQL * Plus is a client tool for interacting with Oracle. In SQL * Plus, you can run the SQL * Plus command and the SQL * Plus statement. The DML, DDL, and DCL statements we usually call are SQL * Plus