cursor for loop in oracle stored procedure example

Today, we will briefly summarize the usage of cursor in PL/SQL. Cursor category: -- Explicit cursor-- Static cursor | | -- Implicit cursorCursor |-- Strong type (Restriction), specifying the return type-- Dynamic Cursor -- ref cursor |-- Weak type

Oracle stored procedure basic syntax introduction, oracle Stored Procedure Oracle stored procedure basic syntax Stored Procedure1 create or replace procedure stored PROCEDURE name2 IS3 BEGIN4 NULL;5 END;Row 1:Create or replace procedure is an SQL

ORACLE Stored Procedure learning, oracle Stored Procedure Stored Procedure1 create or replace procedure stored PROCEDURE name 2 IS 3 BEGIN 4 NULL; 5 END;   Row 1: Create or replace procedure is an SQL statement that notifies the Oracle database to

Oracle stored procedures, declaring variables, for loops1. Create a stored procedureCreate or Replace procedure test (var_name_1 in type,var_name_2 out type) as--Declaring variables (variable name variable type)Begin--The execution body of the

ORACLE stored procedure details, oracle Stored ProcedureORACLE Stored Procedure explanation 1. Definition A Stored Procedure is a set of SQL statements used to complete specific database functions. The SQL statement set is compiled and Stored in the

Oracle stored procedure Basic syntax introduction, the needs of friends can refer to the followingOracle stored procedure Basic syntax stored procedure1 CREATE OR REPLACE PROCEDURE Stored procedure name2 is3 BEGIN4 NULL;5 END;Line 1:Create OR

Oracle stored procedure Basic syntax stored procedure1 CREATE OR REPLACE PROCEDURE Stored procedure name2 is3 BEGIN4 NULL;5 END;Line 1:Create OR REPLACE PROCEDURE is an SQL statement that notifies the Oracle database to create a stored procedure

Problems encountered at work: 1. There is a custom dictionary table: mdl_class_js This table stores the names of many other tables (called resource tables). (In the mdl_class_js table, fields: table_name are used to represent these resource

1, what is a cursor? ① retrieves the result set from the table, and the mechanism from which each point points to a record for interaction.The operations in the ② relational database are performed on the complete rowset.The rowset returned by the

SQL is the language used to access the Oracle database. PL/SQL expands and enhances SQL functions. It also introduces stronger Program Logic. PL/SQL supports DML commands and SQL transaction control statements. DDL is not supported in PL/SQL, which