sqlite特性 只能添加字段 不能修改字段 的解决方法 和php sqlite的管理工具 sqlbuddy

sqlite特性 只能添加字段 不能修改字段 的解决方法 和PHP sqlite的管理工具

1. PHP管理工具

sqlbuddy

功能完善 都是 没有 修改字段的变通办法提供,sqlbuddy建立的sqlite ，用sqlitemanager打不开 提示有密码

PHPsqliteadmin

功能太简单，不完善，

2sqlite特性 只能添加字段 不能修改字段 的解决方法

修改字段

BEGIN TRANSACTION;


ALTER TABLE "proxyip" RENAME TO sqlitemanager_temp_table_14678003456;


CREATE TABLE "proxyip" ("column1" INTEGER PRIMARY KEY AUTOINCREMENT,"column23" TEXT);


INSERT INTO "proxyip" ("column1","column23") SELECT "column1","column24" FROM sqlitemanager_temp_table_14678003456;


DROP TABLE sqlitemanager_temp_table_14678003456;


COMMIT;

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删除字段

BEGIN TRANSACTION;


ALTER TABLE "proxyip" RENAME TO sqlitemanager_temp_table_14465963723;


CREATE TABLE "proxyip" ("column1" INTEGER PRIMARY KEY AUTOINCREMENT);

INSERT INTO "proxyip" ("column1") SELECT "column1" FROM sqlitemanager_temp_table_14465963723;

DROP TABLE sqlitemanager_temp_table_14465963723;


COMMIT;



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sqldubby生成的sqlite 用 sqlitemanager 打不开

原因：

sqlitemanager 我下载的版本 支持sqlite3,sqldubby生成sqlite 2

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sqlite3 — sqlite3 类
sqlite3::busyTimeout — Sets the busy connection handler
sqlite3::changes — Returns the number of database rows that were changed (or inserted or deleted) by the most recent sql statement
sqlite3::close — Closes the database connection
sqlite3::__construct — Instantiates an sqlite3 object and opens an sqlite 3 database
sqlite3::createAggregate — Registers a PHP function for use as an sql aggregate function
sqlite3::createCollation — Registers a PHP function for use as an sql collating function
sqlite3::createFunction — Registers a PHP function for use as an sql scalar function
sqlite3::escapestring — Returns a string that has been properly escaped
sqlite3::exec — Executes a result-less query against a given database
sqlite3::lastErrorCode — Returns the numeric result code of the most recent Failed sqlite request
sqlite3::lastErrorMsg — Returns English text describing the most recent Failed sqlite request
sqlite3::lastInsertRowID — Returns the row ID of the most recent INSERT into the database
sqlite3::loadExtension — Attempts to load an sqlite extension library
sqlite3::open — Opens an sqlite database
sqlite3::prepare — Prepares an sql statement for execution
sqlite3::query — Executes an sql query
sqlite3::querySingle — Executes a query and returns a single result
sqlite3::version — Returns the sqlite3 library version as a string constant and as a number
sqlite3Stmt — sqlite3Stmt 类
sqlite3Stmt::bindParam — Binds a parameter to a statement variable
sqlite3Stmt::bindValue — Binds the value of a parameter to a statement variable
sqlite3Stmt::clear — Clears all current bound parameters
sqlite3Stmt::close — Closes the prepared statement
sqlite3Stmt::execute — Executes a prepared statement and returns a result set object
sqlite3Stmt::paramCount — Returns the number of parameters within the prepared statement
sqlite3Stmt::reset — Resets the prepared statement
sqlite3Result — sqlite3Result 类
sqlite3Result::columnName — Returns the name of the nth column
sqlite3Result::columnType — Returns the type of the nth column
sqlite3Result::fetchArray — Fetches a result row as an associative or numerically indexed array or both
sqlite3Result::finalize — Closes the result set
sqlite3Result::numColumns — Returns the number of columns in the result set
sqlite3Result::reset — Resets the result set back to the first row

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sqlbuddy 可以改写成 支持sqlite3 目前暂时不支持 未完待续。。。。。。。。。。

sqlbuddy 1.33 稍微修改下 既可以支持 sqlite3

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sqlite2 不支持alter table * add column bb ，不支持增加字段

sqllite3支持增加字段

原文地址：https://www.jb51.cc/sqlite/199333.html