How Does Oracle limit the process of illegal package calling? How Does Oracle limit the process of illegal package calling? Assume that I have a package P_A, which encapsulates the important process DO_A.Another package P_ B needs to call P_A.DO_A
Install MySQL 5.6.24 in CentOS 6.6 Install MySQL 5.6.24 in CentOS 6.6 1. First view the MySQL installed on the local machine Rpm-qa | grep-I mysql If any information exists, MySQL has been installed. You need to completely uninstall the previous
Oracle Developer code The following are quotations from Oracle: Oracle Database developers shocould follow is to do everything they can in SQL. what they cannot do in SQL, they shoshould do in PL/SQL. and what they cannot do in PL/SQL, they
PostgreSQL recursive query for Tree Structure Query A very interesting feature found during PostgreSQL's use is that recursive queries can be used for results that require a tree-like structure. For example, the data structure of common company
Oracle uses a string-indexed two-dimensional array Oracle uses a string-indexed two-dimensional array -SAMPLE DATAStore name product salesA apple 3000A banana 2000B APPLE 5000Bmelon 100 -CONSTRUCT PACKAGECreate or replace package p_nested_array
Use the date type in PL/SQL Use the date type in PL/SQL Previous articles introduced the use of strings and numbers in PL/SQL. There is no doubt that strings and numbers are important, but it can be determined that no application depends on the date.
Warning during Oracle Compilation Compiler Warnings Compiler warning Oracle 10g allows you to enable compile-time warnings that are useful to identify potential run-time problems in your programs. these warnings are not serious enough to raise an
Install and configure PostgreSQL 9.4.3 in CentOS 6.5 I. IntroductionPostgreSQL is a very complex object-relational database management system (ORDBMS). It is also currently the most powerful, feature-rich and complex free software database system.
Oracle ascii Functions 1 Introduction The Oracle ascii function is used to return the numeric code of a single character. Second syntax ASCII (single_character) parameter description: indicates that only one character can be entered. If multiple
Data Dictionary related to PL/SQL Sometimes, we encounter the following problems during PL/SQL development:1) What database objects does my program depend on?2) which package calls a subroutine or variable in another package?3) which of the
PL/SQL enhancements in Oracle 12c Oracle 12c enhances a series of methods for defining and executing PL/SQL program units. This article covers several new features of Oracle 12c: 1. optimized the caller permission function for the result cache
Encapsulate PL/SQL code in a smart package The vast majority of PL/SQL-based applications are composed of thousands or even millions of lines of code, which contains detailed and variable user requirements.Commercial logic is initially implemented
Differences between Mycat and MySQL -- the core function of Mycat, mycatmysql A friend was asked during the interview: What is the difference between Mycat and MySQL. We can regard the upper layer as an abstraction of the lower layer. For example,
Tomcat _ configure jdbc (small example) and tomcat configure jdbc Original works, from "Deep Blue blog" blog, deep blue blog: http://blog.csdn.net/huangyanlong/article/details/47043975 Example of jdbc configuration under tomcat When you use
Beckham _ mysql SQL statement optimization process, Beckham _ mysqlsql statementSQL statement OptimizationI. general steps for SQL Optimization (1) Use the show status command to understand the execution frequency of various SQL statements. (2)
MongoDB master-slave and replset test, mongodbreplset1. masterslavemaster configuration file: dbpath = ../data_test/db/masterLogpath = ../data_test/master. logPort = 8642Logappend = trueOplogSize = 2048StorageEngine = wiredTigerNojournal = trueSlave
Beckham _ mysql optimization learning, and Beckham _ mysql OptimizationMysql OptimizationBrief:1. Database Design Optimization2. SQL statement Optimization3. Table Segmentation4. read/write splitting technology I. Database Design Optimization 1.
Beckham _ mysql table optimization and Beckham _ mysql OptimizationMysql table OptimizationBrief:I. analysis tableIi. ChecklistIii. Optimization tableIv. Table Data Import5. Table lock operationsI. analysis table 1.1. command: ANALYZE
Code error: 1327 Undeclared variable: p_film_count, undeclared 1. Error description 1 queries executed, 0 success, 1 errors, 0 warnings query: SELECT FOUND_ROWS () INTO p_film_count error code: 1327 Undeclared variable: p_film_count execution
MySQL displays "error 1067: Unexpected Process Termination", and mysql1067 1. Error description 2. Error cause Today, I am exploring how to use commands to view MySQL logs. I have checked a lot of information, mostly by modifying the